High-precision predictions for the acoustic scale in the non-linear regime (2009)
Seo, Hee-Jong, Eckel, Jonathan, Eisenstein, Daniel J., Mehta, Kushal, Metchnik, Marc, Padmanabhan, Nikhil, ...
We measure shifts of the acoustic scale due to nonlinear growth and redshift distortions to a high precision using a very large volume of high-force-resolution simulations. We compare results from...
Penn, Linda, White, Martin, Oldroyd, John, Walker, Mark, Alberti, K George MM, Mathers, John C
Abstract Background Diabetes prevalence is increasing. The Finnish Diabetes Prevention Study (DPS) showed a 58% reduction in Type 2 Diabetes (T2D) incidence in adults with impaired glucose tolerance...
Reconstructing baryon oscillations (2009)
Noh, Yookyung, White, Martin, Padmanabhan, Nikhil
The baryon acoustic oscillation (BAO) method for constraining the expansion history is adversely affected by non-linear structure formation, which washes out the correlation function peak created at...
Begh, Rachna A, Aveyard, Paul, Upton, Penney, Bhopal, Raj S, White, Martin, Amos, Amanda, ...
Abstract Background The prevalence of smoking is higher among Pakistani and Bangladeshi males than among the general population. Smokers who receive behavioural support and medication quadruple their...
What determines satellite galaxy disruption? (2009)
Wetzel, Andrew R., White, Martin
In hierarchical structure formation, dark matter halos that merge with larger halos can persist as subhalos. These subhalos are likely hosts of visible galaxies. While the dense halo environment...
The Acoustic Peak in the Lyman Alpha Forest (2009)
Slosar, Anže, Ho, Shirley, White, Martin, Louis, Thibaut
We present the first simulation of the signature of baryonic acoustic oscillations (BAO) in Lyman alpha forest data containing 180,000 mock quasar sight-lines. We use eight large dark-matter only...
Calibrating the Baryon Oscillation Ruler for Matter and Halos (2009)
Padmanabhan, Nikhil, White, Martin
We characterize the nonlinear evolution of the baryon acoustic feature as traced by the dark matter and halos, using a combination of perturbation theory and N-body simulations. We confirm that the...
A critical look at cosmological perturbation theory techniques (2009)
Carlson, Jordan, White, Martin, Padmanabhan, Nikhil
Recently a number of analytic prescriptions for computing the non-linear matter power spectrum have appeared in the literature. These typically involve resummation or closure prescriptions which do...
BigBOSS: The Ground-Based Stage IV Dark Energy Experiment (2009)
Schlegel, David J., Bebek, Chris, Heetderks, Henry, Ho, Shirley, Lampton, Michael, Levi, Michael, ...
The BigBOSS experiment is a proposed DOE-NSF Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with an all-sky galaxy redshift...
Conroy, Charlie, White, Martin, Gunn, James E.
Models for the formation and evolution of galaxies readily predict physical properties such as the star formation rates, metal enrichment histories, and, increasingly, gas and dust content of...
Bell, Eric, Davis, Marc, Dey, Arjun, Van Dokkum, Pieter, Ellis, Richard, Eisenstein, Daniel, ...
Over the last decade optical spectroscopic surveys have characterized the low redshift galaxy population and uncovered populations of star-forming galaxies back to z ~ 7. This work has shown that the...
Myers, Adam D, White, Martin, Ball, Nicholas M.
The use of photometric redshifts in cosmology is increasing. Often, however these photo-zs are treated like spectroscopic observations, in that the peak of the photometric redshift, rather than the...
Schlegel, David, White, Martin, Eisenstein, Daniel
BOSS, the Baryon Oscillation Spectroscopic Survey, is a 5-year program to measure the absolute cosmic distance scale and expansion rate with percent-level precision at redshifts z
Heitmann, Katrin, Higdon, David, White, Martin, Habib, Salman, Williams, Brian J., Wagner, Christian
The power spectrum of density fluctuations is a foundational source of cosmological information. Precision cosmological probes targeted primarily at investigations of dark energy require accurate...
Lonneke Goddijn-Murphy, Damien Dailloux, Martin White, Dave Bowers
Conventional digital cameras, the Nikon Coolpix885® and the SeaLife ECOshot®, were used as in situ optical instruments for water quality monitoring. Measured response spectra showed that these...
Russell, Andrew, Heckler, Serena, White, Martin, Sengupta, Soumen, Chappel, David, Hunter, David J., ...
The Smoke Free North East Office (SFNEO) is the first dedicated tobacco control office in the UK coordinating a regional tobacco control network, Smoke Free North East (SFNE). On the basis of...
Background: Advertising in magazines contributes to nutritional knowledge and social norms and may play a role in food choice and adiposity. In contrast to food advertising on television, that in...
Breaking Halo Occupation Degeneracies with Marked Statistics (2008)
White, Martin, Padmanabhan, Nikhil
We show that a suitably defined marked correlation function can be used to break degeneracies in halo-occupation distribution modeling. The statistic can be computed on both 3D and 2D data sets, and...
Reconstructing Baryon Oscillations: A Lagrangian Theory Perspective (2008)
Padmanabhan, Nikhil, White, Martin, Cohn, J. D.
Recently Eisenstein and collaborators introduced a method to `reconstruct' the linear power spectrum from a non-linearly evolved galaxy distribution in order to improve precision in measurements of...
The Coyote Universe I: Precision Determination of the Nonlinear Matter Power Spectrum (2008)
Heitmann, Katrin, White, Martin, Wagner, Christian, Habib, Salman, Higdon, David
Near-future cosmological observations targeted at investigations of dark energy pose stringent requirements on the accuracy of theoretical predictions for the clustering of matter. Currently, N-body...
IASSNS-AST-96/6 We study the uniqueness and robustness of acoustic signatures in the cosmic microwave background by allowing for the possibility that they are generated by some as yet unknown source...
Alignment of galaxy spins in the vicinity of voids (2008)
We provide limits on the alignment of galaxy orientations with the direction to the void center for galaxies lying near the edges of voids. We locate spherical voids in volume limited samples of...
The Clustering and Host Halos of Galaxy Mergers at High Redshift (2008)
Wetzel, Andrew R., Cohn, J. D., White, Martin
High-resolution simulations of cosmological structure formation indicate that dark matter substructure in dense environments, like groups and clusters, may survive for a long time. These dark matter...
Simulating Subhalos at High Redshift: Merger Rates, Counts, and Types (2008)
Wetzel, Andrew R., Cohn, J. D., White, Martin
Galaxies are believed to be in one-to-one correspondence with simulated dark matter subhalos. We use high-resolution N-body simulations of cosmological volumes to calculate the statistical properties...
Forecasting Cosmological Constraints from Redshift Surveys (2008)
White, Martin, Song, Yong-Seon, Percival, Will J.
Observations of redshift-space distortions in spectroscopic galaxy surveys offer an attractive method for observing the build-up of cosmological structure, which depends both on the expansion rate of...
Conroy, Charlie, Gunn, James E., White, Martin
The stellar masses, mean ages, metallicities, and star formation histories of galaxies are now commonly estimated via stellar population synthesis (SPS) techniques. SPS relies on stellar evolution...
Issues in joint SZ and optical cluster finding (2008)
We apply simple optical and SZ cluster finders to mock galaxy catalogues and SZ flux maps created from dark matter halos in a (1 Gpc/h)^3 dark matter simulation, at redshifts 0.5 and 0.9. At each...
Acta Terrae Septemcastrensis, Acta Terrae Septemcastrensis, Cosmin Suciu, Martin White, Gheorghe Lazarovici, Sabin Adrian
Paul NIEDERMAIER (membru corespondent al Academiei Române), (Universitatea „Lucian Blaga ” din Sibiu, România) Dumitru PROTASE (membru de onoare al Academiei Române) (Universitatea...
Testing cosmological structure formation using redshift-space distortions (2008)
Percival, Will J, White, Martin
Observations of redshift-space distortions in spectroscopic galaxy surveys offer an attractive method for observing the build-up of cosmological structure. In this paper we develop and test a new...
Evidence for Merging or Disruption of Red Galaxies from the Evolution of Their Clustering (2008)
The formation and evolution of massive red galaxies form a crucial test of theories of galaxy formation based on hierarchical assembly. In this Letter we use observations of the clustering of...
Penn, Linda, Moffatt, Suzanne M, White, Martin
Abstract Background The European Diabetes Prevention Study (EDIPS) is an RCT of diet and exercise interventions in people with impaired glucose tolerance. We undertook a qualitative study, nested...
Non-linear structure formation and the acoustic scale (2008)
Seo, Hee-Jong, Siegel, Ethan R., Eisenstein, Daniel J., White, Martin
We present high signal-to-noise measurements of the acoustic scale in the presence of nonlinear growth and redshift distortions using 320(Gpc/h)^3 of cosmological PM simulations. Using simple fitting...
Red Galaxy Growth and the Halo Occupation Distribution (2008)
Brown, Michael J. I., Zheng, Zheng, White, Martin, Dey, Arjun, Jannuzi, Buell T., Benson, Andrew J., ...
We have traced the past 7 Gyr of red galaxy stellar mass growth within dark matter halos. We have determined the halo occupation distribution, which describes how galaxies reside within dark matter...
Constraining Anisotropic Baryon Oscillations (2008)
Padmanabhan, Nikhil, White, Martin
We present an analysis of anisotropic baryon acoustic oscillations and elucidate how a mis-estimation of the cosmology, which leads to incorrect values of the angular diameter distance, d_A, and...
A Multimodal Interface for Presenting and Handling Heritage Artefacts (2008)
Panagiotis Petridis, Daniël Pletinckx, Martin White
Abstract. A multimodal interface for presenting and handling heritage artefacts is presented. Traditional exhibitions in museums provide limited possibilities of interaction between the visitor and...
A Cultural Heritage Repository as Source for Learning Materials (2008)
Y. Chrysanthou, K. Cain, N. Silberman, F. Niccolucci (editors, Manjula Patel, Krzysztof Walczak, ...
Image-based photorealistic 3D models for virtual museum exhibitions (2008)
Krzysztof Walczak, Miroslaw Stawniak, Martin White, Peter Kelleher
Abstract. A method of building three-dimensional virtual museum exhibitions with image-based models of artefacts is presented. Instead of creating highly complex 3D virtual reconstructions of...
Abstract MIP-map Level Selection for Texture Mapping (2008)
Martin White, Paul F. Lister, Jon P. Ewins, Marcus D. Waller, Martin White, Paul F. Lister
Centre for VLSI and Computer Graphics,
Halo Assembly Bias in Hierarchical Structure Formation (2008)
Dalal, Neal, White, Martin, Bond, J. Richard, Shirokov, Alexander
We investigate the origin of halo assembly bias, the dependence of halo clustering on assembly history. We relate halo assembly to peak properties measured in the Lagrangian space of the initial...
Abstract A Virtual Interactive Teaching Environment (VITE) Using XML and Augmented Reality (2008)
Martin White, Emmanuel Jay, Fotis Liarokapis, Costas Kostakis, Paul Lister
We present a new approach to the teaching of top down design of VHDL using a novel Virtual Interactive Teaching Environment. This environment enables students to learn more effectively using virtual...
Evrard, August E., Bialek, James, Busha, Michael T., White, Martin, Habib, Salman, Heitmann, Katrin, ...
Abstract not available.
Evrard, August E., Bialek, James, Busha, Michael T., White, Martin, Habib, Salman, Heitmann, Katrin, ...
Abstract not available.
Evrard, August E., Bialek, James, Busha, Michael T., White, Martin, Habib, Salman, Heitmann, Katrin, ...
Abstract not available.
Evrard, August E., Bialek, James, Busha, Michael T., White, Martin, Habib, Salman, Heitmann, Katrin, ...
Abstract not available.
Foster, Charles, Hillsdon, Melvyn, Jones, Andy, Grundy, Chris, Wilkinson, Paul, Wareham, Nick, ...
Background: Physical activity has been positively associated with a range of objectively measured environmental variables. We explored the relationship of walking and other categories of physical...
Evrard, August E., Bialek, James, Busha, Michael T., White, Martin, Habib, Salman, Heitmann, Katrin, ...
Abstract not available.
Background: The internet has become a key tool in health research and is increasingly used for data collection via email and web-surveys. Whilst the demographics of those with and without access to...
Red galaxy growth and the halo occupation distribution (2008)
Brown, Michael J. I., Zheng, Zheng, White, Martin, Dey, Arjun, Jannuzi, Buell T., Benson, Andrew J., ...
We have traced the past 7 Gyr of red galaxy stellar mass growth within dark matter halos. We have determined the halo occupation distribution, which describes how galaxies reside within dark matter...
White, Martin, Martini, Paul, Cohn, J. D.
Recent measurements of high-redshift QSO clustering from the Sloan Digital Sky Survey indicate that QSOs at z~4 have a bias b~14. We find that this extremely high clustering amplitude, combined with...
The Effect of Physical Assumptions on the Calculation of Microwave Background Anisotropies (2007)
Wayne Hu, Douglas Scott, Naoshi Sugiyama, Martin White
this paper, we have set about studying the various assumptions which go into these calculations. For most of the issues, there is a very definite correct choice in order to obtain the most accurate...
The Cosmic Code Comparison Project (2007)
Heitmann, Katrin, Lukic, Zarija, Fasel, Patricia, Habib, Salman, Warren, Michael S., White, Martin, ...
Current and upcoming cosmological observations allow us to probe structures on smaller and smaller scales, entering highly nonlinear regimes. In order to obtain theoretical predictions in these...
Constraints on the merging timescale of luminous red galaxies, or, where do all the halos go? (2007)
Conroy, Charlie, Ho, Shirley, White, Martin
In the LCDM cosmology dark matter halos grow primarily through the accretion of smaller halos. Much of the mass in a halo of 10^14Msun comes in through accretion of ~10^13Msun halos. If each such...
Dark matter halo abundances, clustering and assembly histories at high redshift (2007)
We use a suite of high-resolution N-body simulations to study the properties, abundance and clustering of high mass halos at high redshift, including their mass assembly histories and mergers. We...
PLECINCKX D.: Multimodal Mixed Reality Interfaces for Visualizing Digital Heritage (2007)
Martin White, Panagiotis Petridis, Fotis Liarokapis, Daniel Plecinckx
We have developed several digital heritage interfaces that utilize Web3D, virtual and augmented reality technologies for visualizing digital heritage in an interactive manner through the use of...
PLECINCKX D.: Multimodal Mixed Reality Interfaces for Visualizing Digital Heritage (2007)
Martin White, Panagiotis Petridis, Fotis Liarokapis, Daniel Plecinckx
We have developed several digital heritage interfaces that utilize Web3D, virtual and augmented reality technologies for visualizing digital heritage in an interactive manner through the use of...
A Robust Estimator of the Small-Scale Galaxy Correlation Function (2006)
Padmanabhan, Nikhil, White, Martin, Eisenstein, Daniel J.
We present a new estimator, omega, of the small scale galaxy correlation function that is robust against the effects of redshift space distortions and large scale structures. The estimator is a...
Evidence for merging or disruption of red galaxies from the evolution of their clustering (2006)
White, Martin, Zheng, Zheng, Brown, Michael J. I., Dey, Arjun, Jannuzi, Buell T.
The formation and evolution of massive red galaxies form a crucial test of theories of galaxy formation based on hierarchical assembly. In this letter we use observations of the clustering of...
Simulations of Baryon Oscillations (2006)
Huff, Eric, Schulz, A. E., White, Martin, Schlegel, David J., Warren, Michael S.
The coupling of photons and baryons by Thomson scattering in the early universe imprints features in both the Cosmic Microwave Background (CMB) and matter power spectra. The former have been used to...
The Clustering of Massive Halos (2006)
Wetzel, Andrew R., Cohn, J. D., White, Martin, Holz, Daniel E., Warren, Michael S.
The clustering properties of dark matter halos are a firm prediction of modern theories of structure formation. We use two large volume, high-resolution N-body simulations to study how the...
Cosmic variance of weak lensing surveys in the non-Gaussian regime (2006)
Semboloni, Elisabetta, Van Waerbeke, Ludovic, Heymans, Catherine, Hamana, Takashi, Colombi, Stephane, White, Martin, ...
The results from weak gravitational lensing analyses are subject to a cosmic variance error term that has previously been estimated assuming Gaussian statistics. In this letter we address the issue...
Cosmological science enabled by Planck (2006)
Planck will be the first mission to map the entire cosmic microwave background (CMB) sky with mJy sensitivity and resolution better than 10'. The science enabled by such a mission spans many areas of...
Moffatt, Suzanne, Mackintosh, Joan, White, Martin, Howel, Denise, Sandell, Adam
Abstract Background Qualitative research is increasingly used alongside randomised controlled trials (RCTs) to study a range of factors including participants' experiences of a trial. The need for a...
Mackintosh, Joan, White, Martin, Howel, Denise, Chadwick, Tom, Moffatt, Suzanne, Deverill, Mark, ...
Abstract Background Little research has directly evaluated the impact of increasing financial or material resources on health. One way of assessing this lies with assisting people to obtain full...
Mosaicking with cosmic microwave background interferometers (2006)
Measurements of cosmic microwave background (CMB) anisotropies by interferometers offer several advantages over single-dish observations. The formalism for analyzing interferometer CMB data is well...
Reynolds, Rebecca M., Fischbacher, Colin, Bhopal, Raj, Byrne, Christopher D., White, Martin, Unwin, Nigel, ...
OBJECTIVE: The metabolic syndrome is more prevalent in South Asians in Britain than in the general population. Furthering our understanding of the underlying mechanisms is important because of the...
On the Robustness of the Acoustic Scale in the Low-Redshift Clustering of Matter (2006)
Eisenstein, Daniel J., Seo, Hee-jong, White, Martin
We discuss the effects of non-linear structure formation on the signature of acoustic oscillations in the late-time galaxy distribution. We argue that the dominant non-linear effect is the...
Heymans, Catherine, White, Martin, Heavens, Alan, Vale, Chris, Van Waerbeke, Ludovic
We investigate the expected correlation between the weak gravitational shear of distant galaxies and the orientation of foreground galaxies, through the use of numerical simulations. This...
Adams, Jean, White, Martin, Moffatt, Suzanne, Howel, Denise, Mackintosh, Joan
Abstract Background Socio-economic variations in health, including variations in health according to wealth and income, have been widely reported. A potential method of improving the health of the...
Redshift and Shear Calibration: Impact on Cosmic Shear Studies and Survey Design (2006)
Van Waerbeke, Ludovic, White, Martin, Hoekstra, Henk, Heymans, Catherine
The cosmological interpretation of weak lensing by large-scale structures requires knowledge of the redshift distribution of the source galaxies. Current lensing surveys are often calibrated using...
Moffatt, Suzanne, White, Martin, Mackintosh, Joan, Howel, Denise
Abstract Background In this methodological paper we document the interpretation of a mixed methods study and outline an approach to dealing with apparent discrepancies between qualitative and...
A framework for the implementation of Application Profiles in XML Schemas (2006)
Mourkoussis, Nicholaos, Patel, Manjula, White, Martin
The concept of an application profile (AP) has been developed to allow implementers to draw on metadata terms from existing vocabularies and customise them for a local application. APs play an...
Oldroyd, John Charles, Unwin, Nigel C., White, Martin, Mathers, John C.
AimTo evaluate the effectiveness of lifestyle interventions in people with impaired glucose tolerance (IGT).MethodsParticipants with IGT (n = 78), diagnosed on two consecutive oral glucose tolerance...
The EPOCH Multimodal Interface for Interacting with Digital Heritage Artefacts (2006)
Panagiotis Petridis, Daniel Pletinckx, Katerina Mania, Martin White
Abstract. In recent years, 3D and virtual reality have emerged as areas of extreme interest as methods for visualizing digital museum artefacts in context, and particularly over the Internet. The...
Usability Evaluation of a Virtual Museum Interface (2006)
Athanasis Karoulis, Stella Sylaiou, Martin White
Abstract. The Augmented Representation of Cultural Objects (ARCO) system provides software and interface tools to museum curators to develop virtual museum exhibitions, as well as a virtual...
Bhopal, Raj, White, Martin, Bush, Judith, Kai, Joe, Rankin, Judith
Objective: To explore attitudes to quitting smoking and experience of smoking cessation among Bangladeshi and Pakistani ethnic minority communities. Design: Qualitative study using community...
Suciu, Cosmin, White, Martin, Lazarovici, Gheorghe, Luca, Sabin Adrian
Studiul de faţă reprezintă o abordare interdisciplinară necesară înţelegerii arhitecturii vinčiene. O scurtă prezentare generală a realitătii virtuale (VR) deschide drumul pentru câteva...
Oldroyd, John Charles, Unwin, Nigel C., White, Martin, Mathers, John C.
AimTo evaluate the effectiveness of lifestyle interventions in people with impaired glucose tolerance (IGT).MethodsParticipants with IGT (n = 78), diagnosed on two consecutive oral glucose tolerance...
Scale-dependent bias and the halo model (2005)
We use a simplified version of the halo model with a power law power spectrum to study scale dependence in galaxy bias at the very large scales relevant to baryon oscillations. In addition to...
Going Nonlinear with Dark Energy Cosmologies (2005)
Linder, Eric V., White, Martin
We propose an efficient method for generating high accuracy (~1%) nonlinear power spectra for grids of dark energy cosmologies. Our prescription for matching matter growth automatically matches the...
Reduced Shear Power Spectrum (2005)
Dodelson, Scott, Shapiro, Charles, White, Martin
Measurements of ellipticities of background galaxies are sensitive to the reduced shear, the cosmic shear divided by $(1-\kappa)$ where $\kappa$ is the projected density field. We compute the...
The DEEP2 Galaxy Redshift Survey: The Evolution of Void Statistics from z~1 to z~0 (2005)
Conroy, Charlie, Coil, Alison L., White, Martin, Newman, Jeffrey A., Yan, Renbin, Cooper, Michael C., ...
We present measurements of the void probability function (VPF) at z~1 using data from the DEEP2 Redshift Survey and its evolution to z~0 using data from the Sloan Digital Sky Survey (SDSS). We...
Characterizing the Shapes of Galaxy Clusters Using Moments of the Gravitational Lensing Shear (2005)
Schulz, A. E., Hennawi, Joseph, White, Martin
We explore the use of the tangential component of weak lensing shear to characterize the ellipticity of clusters of galaxies. We introduce an ellipticity estimator, and quantify its properties for...
The coupling of photons and baryons by Thomson scattering in the early universe imprints features in both the Cosmic Microwave Background (CMB) and matter power spectra. The former have been used to...
The Formation Histories of Galaxy Clusters (2005)
A sample of hundreds of simulated galaxy clusters is used to study the statistical properties of galaxy cluster formation. Individual assembly histories are discussed, the degree of virialization is...
Metadata Requirements for Digital Museum Environments (2005)
Patel, Manjula, White, Martin, Mourkoussis, Nikolaos, Walczak, Krzysztof, Wojciechowski, Rafal, Chmielewski, Jacek
As gravitational lensing measurements become increasingly precise, it becomes necessary to include ever higher order effects in the theoretical calculations. Here we show how the difference between...
Nulling Tomography with Weak Gravitational Lensing (2005)
Huterer, Dragan, White, Martin
We explore several strategies of eliminating (or nulling) the small-scale information in weak lensing convergence power spectrum measurements in order to protect against undesirable effects, for...
Finding Clusters in SZ Surveys (2005)
We use simulated maps to investigate the ability of high resolution, low noise surveys of the CMB to create catalogues of Clusters of galaxies by detecting the characteristic signature imprinted by...
Background As health status is consistently negatively correlated with socio-economic deprivation, the need for health services is generally assumed to be greater in more deprived communities. The...
Adams, Jean, White, Martin, Heywood, Peter
Background It has been suggested that year-round daylight saving would reduce road traffic injuries. Methods and results Using 15 years of police data from north-east England, we estimate that 6.9...
Background As health status is consistently negatively correlated with socio-economic deprivation, the need for health services is generally assumed to be greater in more deprived communities. The...
Bhopal, Raj, Fischbacher, Colin, Vartiainen, Erkki, Unwin, Nigel, White, Martin, Alberti, George
Background South Asian populations in the United Kingdom have a high risk of cardiovascular disease (CVD) mortality. Risk prediction models appear to be inaccurate in South Asians. Objective To...
Adams, Jean, White, Martin, Heywood, Peter
Background It has been suggested that year-round daylight saving would reduce road traffic injuries. Methods and results Using 15 years of police data from north-east England, we estimate that 6.9...
Background As health status is consistently negatively correlated with socio-economic deprivation, the need for health services is generally assumed to be greater in more deprived communities. The...
Adams, Jean, White, Martin, Heywood, Peter
Background It has been suggested that year-round daylight saving would reduce road traffic injuries. Methods and results Using 15 years of police data from north-east England, we estimate that 6.9...
Using Weak Lensing to find Halo Masses (2004)
De Putter, Roland, White, Martin
Since the strength of weak gravitational lensing is proportional to the mass along the line of sight, it might be possible to use lensing data to find the masses of individual dark matter clusters....
We study the strong gravitational lensing properties of galaxy clusters obtained from N-body simulations with standard $\Lambda$CDM cosmology. We have used the 32 most massive clusters from a...
Theoretical uncertainty in baryon oscillations (2004)
Eisenstein, Daniel J., White, Martin
We discuss the systematic uncertainties in the recovery of dark energy properties from the use of baryon acoustic oscillations as a standard ruler. We demonstrate that while unknown relativistic...
Baryons and weak lensing power spectra (2004)
We provide a simple toy model to elucidate the effects of baryonic cooling on predictions of the convergence power spectrum in weak gravitational lensing. Our model suggests that the effects of...
Large scale systematic signals in weak lensing surveys (2004)
Vale, Chris, Hoekstra, Henk, Van Waerbeke, Ludovic, White, Martin
We use numerical simulations to model the effect of seeing and extinction modulations on weak lensing surveys. We find that systematic fluctuations in the shear amplitude and source depth can give...
Weak Lensing of the CMB by Large-Scale Structure (2004)
Amblard, Alexandre, Vale, Chris, White, Martin
Several recent papers have studied lensing of the CMB by large-scale structures, which probes the projected matter distribution from $z=10^3$ to $z\simeq 0$. This interest is motivated in part by...
Cluster Lensing of the CMB (2004)
Vale, Chris, Amblard, Alexandre, White, Martin
We investigate what the lensing information contained in high resolution, low noise CMB temperature maps can teach us about cluster mass profiles. We create lensing fields and Sunyaev-Zel'dovich...
Portugal, March 23-26, 205-212, (2004). ISBN 972-98947-3-6. (2004)
Lightweight Xml Driven, Martin White, Fotis Liarokapis, Nicholaos Mourkoussis, Anirban Basu, Joe Darcy, ...
This paper describes our lightweight prototype XML based client-server architecture for creating, managing and presenting virtual cultural exhibitions. ARCOLite provides a low cost solution for...
Web3D and augmented reality to support engineering education (2004)
Fotis Liarokapis, Nikolaos Mourkoussis, Martin White, Joe Darcy, Maria Sifniotis, Panos Petridis, ...
Biological ageing: A fundamental, biological link between socio-economic status and health? (2004)
Socio-economic differences in health appear to be universal but the precise pathways that link socio-economic status and health remain unclear. Differential exposure to specific risk and protective...
When the population approach to prevention puts the health of individuals at risk (2004)
The population approach to prevention has been described as one of the ‘absolute truths’ of preventive medicine. However, when the relationship between risk factor exposure levels and associated...
Radiative transfer through the Intergalactic Medium (2003)
Bolton, James, Meiksin, Avery, White, Martin
We use a probabilistic method to compute the propagation of an ionization front corresponding to the re-ionization of the intergalactic medium in a LCDM cosmology, including both hydrogen and helium....
Halo asphericity and the shear 3-pt function (2003)
We demonstrate through the use of a simple toy model that asphericity in dark matter halos has a measurable effect on the configuration dependence of the weak lensing shear 3-point function at small...
Simulations of weak gravitational lensing (2003)
We describe the simulation data produced by a pilot programme to compute mock weak gravitational lensing maps for a range of currently popular cosmological models by ray tracing through...
Mock Catalogs for the DEEP2 redshift survey (2003)
Yan, Renbin, White, Martin, Coil, Alison L.
We present a set of mock redshift catalogs, constructed from N-body simulations, designed to mimic the DEEP2 survey. Galaxies with a range of luminosities are placed within virialized halos in the...
Tomography of lensing cross power spectra (2003)
Takada, Masahiro, White, Martin
By obtaining photometric redshift information, tomography allows us to cross-correlate galaxy ellipticities in different source redshift bins. The cross-correlation is non-vanishing because the...
Point sources in the context of future SZ surveys (2003)
White, Martin, Majumdar, Subhabrata
We look at the impact of Infra-Red (IR) and radio point sources on upcoming large yield Sunyaev-Zel'dovich (SZ) cluster surveys such as APEX, SPT and ACT. The IR and radio point source counts are...
The effects of UV background correlations on LyA forest flux statistics (2003)
We examine the possible effects of UV background fluctuations on the pixel flux power spectrum and auto-correlation function of the LyA forest due to a finite number of sources in an attenuating...
Constraining evolution in the Halo Model using galaxy redshift surveys (2003)
Yan, Renbin, Madgwick, Darren S., White, Martin
We use the latest observations from the 2dF Galaxy Redshift Survey to fit the conditional luminosity function (CLF) formulation of the halo-model for galaxies at z=0. This fit is then used to test...
Cosmology with the Ly-a forest (2003)
The Lya forest has emerged as one of the few systems capable of probing small-scale structure at high-z with high precision. In this talk I highlight two areas in which the Lya forest is shedding...
Simulating weak lensing by large scale structure (2003)
We model weak gravitational lensing of light by large-scale structure using ray tracing through N-body simulations. The method is described with particular attention paid to numerical convergence. We...
Constraints on the UV metagalactic emissivity using the LyA forest (2003)
Numerical hydrodynamical simulations have proven a successful means of reproducing many of the statistical properties of the LyA forest as measured in high redshift (z > 4) quasar spectra. The source...
Studying clusters with Planck (2003)
We use mock Sunyaev-Zel'dovich effect (SZE) maps to investigate how well the Planck mission might find and characterize clusters of galaxies. We discuss different combinations of frequency maps and...
White, Martin, Shaw, Eddie, Hermansen, Larry, Pugh, William
This study describes types and frequencies of Diseases and Non-Battle Injuries (DNBI) that occurred in a sample population of U.S. Navy and Marine Corps personnel deployed to Saudi Arabia during the...
AMS – metadata for cultural exhibitions using virtual reality (2003)
Nicholaos Mourkoussis, Martin White, Manjula Patel, Jacek Chmielewski, Krzysztof Walczak
This paper discusses a novel metadata element set for describing cultural heritage objects and their digital representations, which is particularly useful for building virtual exhibitions. The...
We estimate the signal from large scale structure at high redshifts in redshifted 21cm line. We focus on z ~ 3 and the LCDM cosmology. We assume that neutral hydrogen is to be found only in galaxies,...
Surveys of Galaxy Clusters with the Sunyaev Zel'dovich Effect (2002)
We have created mock Sunyaev-Zel'dovich effect (SZE) surveys of galaxy clusters using high resolution N-body simulations. To the pure surveys we add `noise' contributions appropriate to instrument...
The effect of bandpass uncertainties on component separation (2002)
Church, Sarah, Knox, Lloyd, White, Martin
Multi-frequency measurements of the microwave sky can be decomposed into maps of distinct physical components such as the cosmic microwave background (CMB) and the Sunyaev-Zel'dovich (SZ) effect....
Clusters of galaxies in the local universe (2002)
Kochanek, C. S., White, Martin, Huchra, J., Macri, L., Jarrett, T. H., Schneider, S. E., ...
We use a matched filter algorithm to find and study clusters in both N-body simulations artificially populated with galaxies and the 2MASS survey. In addition to numerous checks of the matched filter...
We present the mass functions for different mass estimators for a range of cosmological models. We pay particular attention to how universal the mass function is, and how it depends on the cosmology,...
Weak Lensing as a Calibrator of the Cluster Mass-Temperature Relation (2002)
Huterer, Dragan, White, Martin
The abundance of clusters at the present epoch and weak gravitational lensing shear both constrain roughly the same combination of the power spectrum normalization sigma_8 and matter energy density...
White, Martin, Hernquist, Lars, Springel, Volker
We present results on the thermal and kinetic Sunyaev-Zel'dovich (SZ) effects from a sequence of high resolution hydrodynamic simulations of structure formation, including cooling, feedback and metal...
High redshift galaxies and the Lyman-alpha forest in a CDM universe (2002)
Croft, Rupert A. C., Hernquist, Lars, Springel, Volker, Westover, Michael, White, Martin
We use a cosmological hydrodynamic simulation of a cold dark matter universe to investigate theoretically the relationship between high redshift galaxies and the Lyman=alpha forest at redshift z=3....
Levine, E. S., Schulz, A. E., White, Martin
Using the Fisher matrix formalism, we quantitatively investigate the constraints on a 10 dimensional space of cosmological parameters which may be obtained with future cluster surveys. We explore the...
This Resource Letter provides a guide to the literature on the theory of anisotropies in the cosmic microwave background. Journal articles, web pages, and books are cited for the following topics:...
Wayne Hu, Matt Hedman, Joe Silk, Martin White, Matias Zaldarriaga, Matt Hedman, ...
• Damping tail of temperature power spectrum and its use as a standard ruler • Generation of polarization through damping • Unveiling of gravitational lensing from features in the damping tail...
Multimedia Augmented Reality Interface for E-Learning (MARIE) (2002)
Fotis Liarokapis, Panos Petridis, Paul Lister, Martin White
An interactive Multimedia Augmented Reality Interface for E-Learning (MARIE) is presented in the article. Its application for engineering education is discussed in order to enhance traditional...
Bhopal, Raj, Hayes, Louise, White, Martin, Unwin, Nigel, Harland, Jane, Ayis, Salma, ...
Background The aim of this study was to test the hypothesis that in Europeans and South Asians (Indians, Pakistanis, Bangladeshis) alike, worse socio‐economic status is associated with a...
Completeness in Weak Lensing Searches for Clusters (2001)
White, Martin, Van Waerbeke, Ludovic, Mackey, Jonathan
Using mock observations of numerical simulations, we investigate the completeness and efficiency of searches for galaxy clusters in weak lensing surveys. While it is possible to search for high mass...
Completeness in Photometric and Spectroscopic Searches for Clusters (2001)
White, Martin, Kochanek, C. S.
We investigate, using simulated galaxy catalogues, the completeness of searches for massive clusters of galaxies in redshift surveys or imaging surveys with photometric redshift estimates, i.e. what...
The distribution of mass around galaxies (2001)
White, Martin, Hernquist, Lars, Springel, Volker
We explore the distribution of mass about the expected sites of galaxy formation in a high-resolution hydrodynamical simulation of a LCDM cosmology which includes cooling, star-formation and...
Theoretical Estimates of Intrinsic Galaxy Alignment (2001)
Mackey, Jonathan, White, Martin, Kamionkowski, Marc
It has recently been argued that the observed ellipticities of galaxies may be determined at least in part by the primordial tidal gravitational field in which the galaxy formed. Long-range...
Constraints on the long-range properties of gravity from weak gravitational lensing (2001)
White, Martin, Kochanek, C. S.
Weak gravitational lensing provides a means of testing the long-range properties of gravity. Current measurements are consistent with standard Newtonian gravity and inconsistent with substantial...
Cosmological Difficulties with Modified Newtonian Dynamics (or: La Fin du MOND?) (2001)
Scott, Douglas, White, Martin, Cohn, Joanne D., Pierpaoli, Elena
The cold dark matter paradigm has been extremely successful for explaining a wide range of cosmological phenomena. Nevertheless, since evidence for non-baryonic dark matter remains indirect, all...
The Tensor to Scalar Ratio of Phantom Dark Energy Models (2001)
We investigate the anisotropies in the cosmic microwave background in a class of models which possess a positive cosmic energy density but negative pressure, with a constant equation of state w =...
Global Probes of the Impact of Baryons on Dark Matter Halos (2001)
Kochanek, C. S., White, Martin
The halo mass function, dn/dM, predicted by hierarchical clustering models can be measured indirectly using dynamical probes like the distribution of gravitational lens image separations,...
Constraints from the damping tail (2001)
The detection of anisotropy in the cosmic microwave background on arcminute scales by the Cosmic Background Imager (CBI) provides us with our first measurement of the damping tail and closes one...
Physical structures, advection and mixing in the region of Goban spur (2001)
HUTHNANCE, John M., COELHO, Henrique, GRIFFITHS, Colin R., KNIGHT, Philip J., REES, Andrew P., SINHA, Bablu, ...
The physical context for ocean margin exchange at Goban Spur is described. Observations adjacent to, prior to and during the Ocean Margin EXchange (OMEX) project of 1993-1996 are used. They include...
We develop a method for estimating the shear power spectra from weak-lensing observations and test it on simulated data. Our method describes the shear Ðeld in terms of angular power spectra and the...
The halo model and numerical simulations (2000)
White, Martin, Hernquist, Lars, Springel, Volker
Recently there has been a lot of attention focussed on a virialized halo-based approach to understanding the properties of the matter and galaxy power spectrum. A key ingredient in this model is the...
We discuss the different definitions of the mass of a halo in common use and how one may convert between them. Using N-body simulations we show that mass estimates based on spherical averages are...
Power Spectra Estimation for Weak Lensing (2000)
We develop a method for estimating the shear power spectra from weak lensing observations and test it on simulated data. Our method describes the shear field in terms of angular power spectra and...
A Comparison of Simulated and Analytic Major Merger Counts (2000)
Cohn, J. D., Bagla, J. S., White, Martin
We use large volume, high resolution, N-body simulations of 3 different $\Lambda$CDM models, with different clustering strengths, to generate dark matter halo merging histories. Over the reliable...
Hydrodynamic Simulations of the Sunyaev-Zel'dovich effect(s) (2000)
Springel, Volker, White, Martin, Hernquist, Lars
We have performed a sequence of high resolution hydrodynamic simulations of structure formation in a LCDM model to study the thermal and kinetic Sunyaev-Zel'dovich (SZ) effects. Including only...
The Effect of the Cosmic Web on Cluster Weak Lensing Mass Estimates (2000)
Metzler, Christopher A., White, Martin, Loken, Chris
In modern hierarchical theories of structure formation, rich clusters of galaxies form at the vertices of a weblike distribution of matter, with filaments emanating from them to large distances and...
The redshift space power spectrum in the halo model (2000)
Recently there has been a lot of attention focussed on a virialized halo-based approach to understanding the properties of the matter and galaxy power spectrum. We show that this model allows a...
Boomerang returns unexpectedly (2000)
White, Martin, Scott, Douglas, Pierpaoli, Elena
Experimental study of the anisotropy in the cosmic microwave background (CMB) is gathering momentum. The eagerly awaited Boomerang results have lived up to expectations. They provide convincing...
A Quantitative Study of Interacting Dark Matter in Halos (2000)
Kochanek, C. S., White, Martin
We study the evolution of Hernquist profile ``galaxies'' in the presence of self-interacting dark matter (SIDM), where the properties of the dark matter can be parameterized by one number, sigma-hat...
Still flat after all these years (2000)
Pierpaoli, Elena, Scott, Douglas, White, Martin
The Universe could be spatially flat, positively curved or negatively curved. Each option has been popular at various times, partly affected by an understanding that models tend to evolve away from...
A Characteristic Scale on the Cosmic Microwave Sky (2000)
Pierpaoli, Elena, Scott, Douglas, White, Martin
The current suite of results from Cosmic Microwave Background anisotropy experiments is fulfilling the promise of providing extraordinary levels of discrimination between cosmological models. We...
Suppressing Linear Power on Dwarf Galaxy Halo Scales (2000)
White, Martin, Croft, Rupert A. C.
Recently is has been suggested that the dearth of small halos around the Milky Way arises due to a modification of the primordial power spectrum of fluctuations from inflation. Such modifications...
Analyzing data from DASI (1999)
White, Martin, Carlstrom, John, Dragovan, Mark, Holzapfel, S. W. L.
We present an optimized layout of horn positions for the Degree Angular Scale Interferometer (DASI), which provides good coverage of the u-v plane and 3-fold symmetry. We investigate how an optimal...
A New Algorithm for Computing Statistics of Weak Lensing by Large-Scale Structure (1999)
We describe an efficient algorithm for calculating the statistics of weak lensing by large-scale structure based on a tiled set of independent particle-mesh N-body simulations which telescope in...
Zibin, J. P., Scott, Douglas, White, Martin
The detection of a stochastic background of long-wavelength gravitational waves (tensors) in the cosmic microwave background (CMB) anisotropy would be an invaluable probe of the high energy physics...
Weak Gravitational Lensing and Cluster Mass Estimates (1999)
Metzler, Christopher A., White, Martin, Norman, Michael, Loken, Chris
Hierarchical theories of structure formation predict that clusters of galaxies should be embedded in a web like structure, with filaments emanating from them to large distances. The amount of mass...
Anisotropies in the CMB (1999)
The ten's of micro-Kelvin variations in the temperature of the cosmic microwave background (CMB) radiation across the sky encode a wealth of information about the Universe. The full-sky,...
Constraining dark energy with SNe Ia and large-scale structure (1999)
Perlmutter, Saul, Turner, Michael S., White, Martin
Measurements of the distances to SNe Ia have produced strong evidence that the expansion of the Universe is accelerating, implying the existence of a nearly uniform component of dark energy with...
Limits on the gravity wave contribution to microwave anisotropies (1999)
Zibin, J. P., Scott, Douglas, White, Martin
We present limits on the fraction of large angle microwave anisotropies which could come from tensor perturbations. We use the COBE results as well as smaller scale CMB observations, measurements of...
A NEW ALGORITHM FOR COMPUTING STATISTICS OF WEAK LENSING BY LARGE-SCALE STRUCTURE (1999)
We describe an efficient algorithm for calculating the statistics of weak lensing by large-scale structure based on a tiled set of independent particle-mesh N-body simulations that telescope in...
Baryonic Signatures in Large-Scale Structure (1998)
Meiksin, A., White, Martin, Peacock, J. A.
We investigate the consequences of a non-negligible baryon fraction for models of structure formation in Cold Dark Matter dominated cosmologies, emphasizing in particular the existence of...
The Growth of Correlations in the Matter Power Spectrum (1998)
We find statistically significant correlations in the cosmological matter power spectrum over the full range of observable scales. While the correlations between individual modes are weak, the...
We calculate the higher order moments in a sequence of models where the initial density fluctuations are drawn from a chi^2_nu distribution with a power-law power spectrum. For large values of nu the...
Polarization of the CMB Anisotropy (1998)
I review why we expect the CMB anisotropy to be polarized, what we can learn from studying polarization and the level of the experimental challenge it presents. A discussion of current and future...
What have we already learned from the CMB? (1998)
Lawrence, Charles R., Scott, Douglas, White, Martin
The COBE satellite, and the DMR experiment in particular, was extraordinarily successful. However, the DMR results were announced about 7 years ago, during which time a great deal more has been...
Implications of SCUBA observations for the Planck Surveyor (1998)
We investigate the implications for the Planck Surveyor of the recent sub-millimetre number counts obtained using the SCUBA camera. Since it observes at the same frequency as one of the higher...
Observationally Determining the Properties of Dark Matter (1998)
Hu, Wayne, Eisenstein, Daniel J., Tegmark, Max, White, Martin
Determining the properties of the dark components of the universe remains one of the outstanding challenges in cosmology. We explore how upcoming CMB anisotropy measurements, galaxy power spectrum...
Complementary Measures of the Mass Density and Cosmological Constant (1998)
The distance-redshift relation depends on the amount of matter of each type in the universe. Measurements at different redshifts constrain differing combinations of these matter densities and thus...
A Remark on the Estimation of Angular Power Spectra in the Presence of Foregrounds (1998)
It is common practice to estimate the errors on the angular power spectrum which could be obtained by an experiment with a given angular resolution and noise level. Several authors have also...
Interferometric Observation of Cosmic Microwave Background Anisotropies (1997)
White, Martin, Carlstrom, John E., Dragovan, Mark, Holzapfel, William L.
We present a formalism for analyzing interferometric observations of Cosmic Microwave Background (CMB) anisotropy and polarization data. The formalism is based upon the ell-space expansion of the...
A Complete Treatment of CMB Anisotropies in a FRW Universe (1997)
Hu, Wayne, Seljak, Uros, White, Martin, Zaldarriaga, Matias
We generalize the total angular momentum method for computing Cosmic Microwave Background anisotropies to Friedman-Robertson-Walker (FRW) spaces with arbitrary geometries. This unifies the treatment...
A CMB Polarization Primer (1997)
We present a pedagogical and phenomenological introduction to the study of cosmic microwave background (CMB) polarization to build intuition about the prospects and challenges facing its detection....
CMB Anisotropies: Total Angular Momentum Method (1997)
A total angular momentum representation simplifies the radiation transport problem for temperature and polarization anisotropy in the CMB. Scattering terms couple only the quadrupole moments of the...
Tensor Anisotropies in an Open Universe (1997)
We calculate the anisotropies in the cosmic microwave background induced by long-wavelength primordial gravitational waves in a universe with negative spatial curvature, such as are produced in the...
CDM Models with a Smooth Component (1997)
Turner, Michael, White, Martin
The inflationary prediction of a flat Universe is at odds with current determinations of the matter density (Omega_M~0.2-0.4). This dilemma can be resolved if a smooth component contributes the...
A CMB polarization primer (1997)
We present a pedagogical and phenomenological introduction to the study of cosmic microwave background (CMB) polarization to build intuition about the prospects and challenges facing its detection....
Wayne Hu, Martin White, Communicated David, N. Schramm
We present a pedagogical and phenomenological introduction to the study of cosmic microwave background (CMB) polarization to build intuition about the prospects and challenges facing its detection....
We calculate the anisotropies in the cosmic microwave background induced by long-wavelength primordial gravitational waves in a universe with negative spatial curvature, such as are produced in the...
We present a pedagogical derivation of the Sachs-Wolfe effect, specifically the factor 1/3 relating the temperature fluctuations to gravitational potentials. The result arises from a cancellation...
The Damping Tail of CMB Anisotropies (1996)
By decomposing the damping tail of CMB anisotropies into a series of transfer functions representing individual physical effects, we provide ingredients that will aid in the reconstruction of the...
Observational Constraints on Open Inflation Models (1996)
We discuss observational constraints on models of open inflation. Current data from large-scale structure and the cosmic microwave background prefer models with blue spectra and/or Omega_0 >=...
The Four-Year COBE Normalization and Large-Scale Structure (1996)
We present an analysis of the four-year data from the COBE DMR experiment. We use a Karhunen-Loeve expansion of the pixel data to calculate the normalization and goodness-of-fit of a range of models...
Four-year COBE normalization of inflationary cosmologies (1996)
Bunn, Emory F, Liddle, Andrew R, White, Martin
We supply fitting formulae enabling the normalization of slow-roll inflation models to the four-year COBE data. We fully include the effect of the gravitational wave modes, including the predicted...
Testing Inflation with Small Scale CMB Anisotropies (1996)
We discuss ability of the harmonic pattern of peaks in the CMB angular power spectrum to test inflation. By studying robust features of alternate models, which must all be isocurvature in nature, we...
Measuring the Curvature of the Universe (1996)
We discuss how the curvature of the universe can be robustly measured employing only the gross features of the CMB anisotropy spectrum. Though the position of the first peak is not robust,...
Distinguishing Causal Seeds from Inflation (1996)
Hu, Wayne, Spergel, David N., White, Martin
Causal seed models, such as cosmological defects, generically predict a distinctly different structure to the CMB power spectrum than inflation, due to the behavior of the perturbations outside the...
Cold dark matter models with high baryon content (1996)
White, Martin, Viana, Pedro T. P., Liddle, Andrew R., Scott, Douglas
Recent results have suggested that the density of baryons in the Universe, OmegaB, is much more uncertain than previously thought, and may be significantly higher. We demonstrate that a higher OmegaB...
Acoustic Signatures in the Cosmic Microwave Background (1996)
We study the uniqueness and robustness of acoustic signatures in the cosmic microwave background by allowing for the possibility that they are generated by some as yet unknown source of gravitational...
A New Test of Inflation (1996)
We discuss a new test of inflation from the harmonic pattern of peaks in the cosmic microwave background radiation angular power spectrum. By characterizing the features of alternate models and...
Direct Imaging of the CMB from Space (1996)
Janssen, Michael A., Scott, Douglas, White, Martin, Seiffert, Michael D., Lawrence, Charles R., Gorski, Krzysztof M., ...
Fundamental information about the Universe is encoded in anisotropies of the Cosmic Microwave Background (CMB) radiation. To make full use of this information, an experiment must image the entire sky...
The Impact of the CMB on Large-Scale Structure (1996)
The COBE detection of microwave anisotropies provides the best way of fixing the amplitude of cosmological fluctuations on the largest scales. We discuss the impact of this new, precise normalization...
Cosmic Confusion and Structure Formation (1996)
We present a re-analysis of the cosmic confusion hypothesis, elucidating the degree to which ``confusion'' can be expected to hold in a class of flat, adiabatic models. This allows us to devise a...
AND ASTROPHYSICS The Sachs-Wolfe effect (1996)
Abstract. We present a pedagogical derivation of the Sachs-Wolfe effect, specifically the factor 1 3 relating the temperature fluctuations to gravitational potentials. The result arises from a...
Acoustic signatures in the cosmic microwave background (1996)
We study the uniqueness and robustness of acoustic signatures in the cosmic microwave background by allowing for the possibility that they are generated by some as yet unknown source of gravitational...
By decomposing the damping tail of cosmic microwave background (CMB) anisotropies into a series of transfer functions representing individual physical e†ects, we provide ingredients that will aid...
Cold dark matter models with high baryon content (1996)
Martin White, Andrew R. Liddle, Douglas Scott
Recent results have suggested that the density of baryons in the Universe, B, ismuch more uncertain than previously thought, and may be signi cantly higher. We demonstrate that a higher B increases...
Dependence of Inflationary Reconstruction upon Cosmological Parameters (1995)
Turner, Michael, White, Martin
The inflationary potential and its derivatives determine the spectrum of scalar and tensor metric perturbations that arise from quantum fluctuations during inflation. The CBR anisotropy offers a...
Cold Dark Matter Models with a Cosmological Constant (1995)
Liddle, Andrew R, Lyth, David H, Viana, Pedro T P, White, Martin
We use linear and quasi-linear perturbation theory to analyse cold dark matter models of structure formation in spatially flat models with a cosmological constant. Both a tilted spectrum of density...
Why Not Consider Closed Universes? (1995)
We consider structure formation and CMB anisotropies in a closed universe, both with and without a cosmological constant. The CMB angular power spectrum and the matter transfer function are...
Cold Dark Matter Resuscitated? (1995)
White, Martin, Scott, Douglas, Silk, Joe, Davis, Marc
The Cold Dark Matter (CDM) model has an elegant simplicitly which makes it very predictive, but when its parameters are fixed at their `canonical' values its predictions are in conflict with...
CMB Anisotropies in the Weak Coupling Limit (1995)
We present a new, more powerful and accurate, analytic treatment of cosmic microwave background (CMB) anisotropies in the weakly coupled regime. Three applications are presented: gravitational...
The study of anisotropies in the Cosmic Microwave Background radiation is progressing at a phenomenal rate, both experimentally and theoretically. These anisotropies can teach us an enormous amount...
The Effect of Physical Assumptions on the Calculation of Microwave Background Anisotropies (1995)
Hu, Wayne, Scott, Douglas, Sugiyama, Naoshi, White, Martin
As the data on CMB anisotropies improve and potential cosmological applications are realized, it will be increasingly important for theoretical calculations to be as accurate as possible. All modern...
From Microwave Anisotropies to Cosmology (1995)
Scott, Douglas, Silk, Joe, White, Martin
Fluctuations in the temperature of the cosmic microwave background have now been detected over a wide range of angular scales, and a consistent picture seems to be emerging. This article describes...
The COBE Normalization of CMB Anisotropies (1995)
With the advent of the COBE detection of fluctuations in the Cosmic Microwave Background radiation, the study of inhomogeneous cosmology has entered a new phase. It is now possible to accurately...
Development of public health training in Hungary - an exercise in international co-operation (1995)
McKee, Martin, White, Martin, Bojan, Ferenc, Østbye, Truls
Following the fall of Communism, the countries of Central and Eastern Europe have been restructuring their health systems. Restructured medical education is vital to, and has been supported by, the...
The Existence of Baryons at z=1000 (1994)
Fluctuations in the CMB have now been detected over a wide range of angular scales, and a consistent picture seems to be emerging. The data cannot currently constrain a large number of cosmological...
Gates, Evalyn, Krauss, Lawrence M., White, Martin
We describe how to consistently incorporate solar model uncertainties, along with experimental errors and correlations, when analyzing solar neutrino data to derive confidence limits on parameter...
Quoting Experimental Information (1994)
There was a question raised at this meeting as to the best way to present the results of experiments measuring anisotropies in the CMB. Here we will make some simple comments about the 3 main...
Baryon Magnetic Moments in a Simultaneous Expansion in $1/N$ and $m_s$ (1994)
Luty, Markus A., March-Russell, John, White, Martin
We consider the baryon octet and decuplet magnetic moments in a simultaneous expansion in $m_s$ and $1/N$ taking $N_F / N \sim 1$, where $N$ is the number of QCD colors and $N_F$ is the number of...
Window Functions for CMB Experiments (1994)
White, Martin, Srednicki, Mark
We discuss the applicability and derivation of window functions for cosmic microwave background experiments on large and intermediate angular scales. These window functions describe the response of...
Reconstructing the CMB power spectrum (1994)
We discuss a method for a model independent reconstruction of the CMB temperature fluctuation power spectrum on small and intermediate scales that is geared to individual experiments. The importance...
Implications of MAX for CDM (1993)
Srednicki, Mark, White, Martin, Scott, Douglas, Bunn, Emory T.
We analyze the Gamma Ursae Minoris (GUM) and Mu Pegasii (MuP) scans of the Millimeter-wave Anisotropy eXperiment in the context of cold dark matter (CDM) models of structure formation, paying...
Tensor Perturbations in Inflationary Models as a Probe of Cosmology (1993)
Turner, Michael S., White, Martin, Lidsey, James E.
In principle, the tensor metric (gravity-wave) perturbations that arise in inflationary models can, beyond probing the underlying inflationary model, provide information about the Universe:...
"Sample Variance" in Small-Scale CMB Anisotropy Experiments (1993)
Scott, Douglas, Srednicki, Mark, White, Martin
We discuss the effects of finite sky coverage and the uncertainty in extracting information about the power spectrum from experiments on small angular scales. In general the cosmic variance is...
Decuplet Contributions to Hyperon Axial Vector Form Factors (1993)
Luty, Markus A., White, Martin
We consider the predictions of chiral perturbation theory for $SU(3)$ breaking in the axial vector form factor $g_1$ measured in semileptonic hyperon decays. We confirm that if only octet baryon...
$SU(3)$ vs. $SU(3) \times SU(3)$ Breaking in Weak Hyperon Decays (1993)
Luty, Markus A., White, Martin
We consider the predictions of chiral perturbation theory for $SU(3)$ breaking in weak semileptonic and $s$-wave nonleptonic hyperon decays. By defining an expansion sensitive only to $SU(3)$...
Cosmic Variance in CMB Anisotropies: From $1^{\circ}$ to COBE (1993)
White, Martin, Krauss, Lawrence M., Silk, Joseph
Cosmic Microwave Background (CMB) anisotropies that result from quantum fluctuations during inflation are explored and the impact of their ``cosmic variance'' on the ability to use existing data to...
Solar Neutrino Data, Solar Model Uncertainties and Neutrino Oscillations (1992)
Krauss, Lawrence M., Gates, Evalyn, White, Martin
We incorporate all existing solar neutrino flux measurements and take solar model flux uncertainties into account in deriving global fits to parameter space for the MSW and vacuum solutions of the...
Contribution of Long Wavelength Gravitational Waves to the CMB Anisotropy (1992)
We present an in depth discussion of the production of gravitational waves from an inflationary phase that could have occurred in the early universe, giving derivations for the resulting spectrum and...
Gravitational Lensing and the Variability of G (1992)
Krauss, Lawrence, White, Martin
The four observables associated with gravitational lensing of distant quasars by intervening galaxies: image splittings, relative amplifications, time delays, and optical depths, provide separate...
Thesis (M. Sc.)--University of Newcastle upon Tyne. 1990.
Some physiological accompaniments of verbal reaction-time. (1926)
Thesis (M.A.)--University of Texas, 1926.
Lamont, Douglas, Parker, Louise, White, Martin, Unwin, Nigel, Bennett, Stuart M A, Cohen, Melanie, ...
Nucleoprotein Complexes in Simian Virus 40-Infected Cells
When African green monkey kidney cells (BSC-1) were infected with simian virus 40 (SV40) and extracted with 0.25% Triton X-100 after exposure to 3H-thymidine, the 3H-SV40 deoxyribonucleic acid (DNA)...
Mackintosh, Joan, White, Martin, Howel, Denise, Chadwick, Tom, Moffatt, Suzanne, Deverill, Mark, ...
Lamont, Douglas, Parker, Louise, White, Martin, Unwin, Nigel, Bennett, Stuart M A, Cohen, Melanie, ...
Nucleoprotein Complexes in Simian Virus 40-Infected Cells
When African green monkey kidney cells (BSC-1) were infected with simian virus 40 (SV40) and extracted with 0.25% Triton X-100 after exposure to 3H-thymidine, the 3H-SV40 deoxyribonucleic acid (DNA)...
Mackintosh, Joan, White, Martin, Howel, Denise, Chadwick, Tom, Moffatt, Suzanne, Deverill, Mark, ...
Third Country Effects of Price Discrimination: The Case of the Canadian Wheat Board
Rude, James, Brewin, Derek, White, Martin
This study considers whether the major concern with the behaviour of exporting state trading enterprises (STEs) should be the practice of price discrimination. Using a differentiated products world...
Gastric Cancer Surgery – A Balance of Risk and Radicality
Lamb, Peter, Sivashanmugam, T, White, Martin, Irving, Mark, Wayman, John, Raimes, Simon