Sunyaev-Zel'dovich Cluster Profiles Measured with the South Pole Telescope (2009)
Plagge, T., Benson, B. A., Ade, P. A. R., Aird, K. A., Bleem, L. E., Carlstrom, J. E., ...
We present Sunyaev-Zel'dovich measurements of 15 massive X-ray selected galaxy clusters obtained with the South Pole Telescope. The Sunyaev-Zel'dovich (SZ) cluster signals are measured at 150 GHz,...
J. R. Bond, A. H. Jaffe, L. Knox
Powerful constraints on theories can already be inferred from existing CMB anisotropy data. But performing an exact analysis of available data is a complicated task and may become prohibitively so...
Eriksen, H. K., Huey, Greg, Saha, R., Hansen, F. K., Dick, J., Banday, A. J., ...
We analyze the 3 yr Wilkinson Microwave Anisotropy Probe (WMAP) temperature anisotropy data seeking to confirm the power spectrum and likelihoods published by the WMAP team. We apply five independent...
Monte Carlo Algorithms for Bayesian analysis of the Cosmic Microwave Background. (2006)
Jewell, Jeffrey B., Eriksen, H. K., O'Dwyer, I. J., Wandelt, B. D., Gorski, K., Knox, L., ...
NASA/JPL
A re-analysis of the three-year WMAP temperature power spectrum and likelihood (2006)
Eriksen, H. K., Huey, Greg, Saha, R., Hansen, F. K., Dick, J., Banday, A. J., ...
We analyze the three-year WMAP temperature anisotropy data seeking to confirm the power spectrum and likelihoods published by the WMAP team. We apply five independent implementations of four...
Schneider, M., Knox, L., Zhan, H., Connolly, A.
We investigate how well the redshift distributions of galaxies sorted into photometric redshift bins can be determined from the galaxy angular two-point correlation functions. We find that the...
Two Windows on Acceleration and Gravitation: Dark Energy or New Gravity? (2005)
Small distortions in the observed shapes of distant galaxies, a cosmic shear due to gravitational lensing, can be used to simultaneously determine the distance-redshift relation, r(z), and the...
Chu, M., Eriksen, H. K., Knox, L., Gorski, K. M., Jewell, J. B., Larson, D. L., ...
We study the Blackwell-Rao (BR) estimator of the probability distribution of the angular power spectrum, P(C_l|d), by applying it to samples of full-sky no-noise CMB maps generated via Gibbs...
Updates on SuZIE and Python (2004)
Ganga, K., Coble, K., Kovac, J., Dragovan, M., Holzapfel, B., Carlstrom, J., ...
SuZIE and Python are two mature cosmic microwave background (CMB) anisotropy experiments. In this presentation we preview recent oberservations from both experiments.
Multifrequency analysis of 21 cm fluctuations from the Era of Reionization (2004)
Santos, M. G., Cooray, A., Knox, L.
We study the prospects for extracting detailed statistical properties of the neutral Hydrogen distribution during the era of reionization using the brightness temperature fluctuations from redshifted...
Weak Lensing and Supernovae: Complementary Probes of Dark Energy (2004)
Knox, L., Albrecht, A., Song, Y. S.
Weak lensing observations and supernova observations, combined with CMB observations, can both provide powerful constraints on dark energy properties. Considering statistical errors only, we find...
Aguirre, J. E., Bezaire, J. J., Cheng, E. S., Cottingham, D. A., Cordone, S. S., Crawford, T. M., ...
We present measurements of the integrated flux relative to the local background of the Large and Small Magellanic Clouds and the region 30-Doradus (the Tarantula Nebula) in the LMC in four frequency...
Small-scale CMB Temperature and Polarization Anisotropies due to Patchy Reionization (2003)
Santos, M. G., Cooray, A., Haiman, Z., Knox, L.
We study contributions from inhomogeneous (patchy) reionization to arcminute scale ($1000 < \ell < 10,000$) cosmic microwave background (CMB) anisotropies. We show that inhomogeneities in the...
Detailed study of the scalar and tensor perturbation spectra can provide much information about the primordial fluctuation-generator, be it inflation or something else. The tensor perturbation...
Proceedings of the Davis Meeting on Cosmic Inflation (2003)
Kaplinghat, M., Kaloper, N., Knox, L.
The Davis Meeting on Cosmic Inflation marked an exciting milestone on the road to precision cosmology. This is the index page for the proceedings of the conference. Individual proceedings...
Kaplinghat, M., Chu, M., Haiman, Z., Holder, G., Knox, L., Skordis, C.
The recent discovery of a Gunn--Peterson (GP) trough in the spectrum of the redshift 6.28 SDSS quasar has raised the tantalizing possibility that we have detected the reionization of the universe....
Using Galaxy Cluster Peculiar Velocities to Constrain Cosmological Parameters (2002)
Galaxy cluster peculiar velocities can be inferred from high-sensitivity, high-resolution multiple-frequency observations in the 30 to 400 GHz range. While galaxy cluster counts and power spectra are...
Cosmic Microwave Background Anisotropy Measurement From Python V (2001)
Coble, K., Dodelson, S., Dragovan, M., Ganga, K., Knox, L., Kovac, J., ...
We analyze observations of the microwave sky made with the Python experiment in its fifth year of operation at the Amundsen-Scott South Pole Station in Antarctica. After modeling the noise and...
CMB and Inflation: the report from Snowmass 2001 (2001)
Church, S., Jaffe, A., Knox, L.
Astrophysical observations provide the best evidence of physics beyond the particle physicists' standard model. Over the past decade, the case has solidified for inflation, dark energy, dark matter...
Knox, L., Christensen, N., Skordis, C.
If Omega_tot = 1 and structure formed from adiabatic initial conditions then the age of the Universe, as constrained by measurements of the cosmic microwave background (CMB), is t_0=14.0 +/- 0.5 Gyr....
CMB Power Spectrum Estimation via Hierarchical Decomposition (2001)
We have developed a fast, accurate and generally applicable method for inferring the power spectrum and its uncertainties from maps of the cosmic microwave background (CMB) in the presence of...
Sector level analysis of management development: the case of Scottish local authorities (2001)
Studies of management development (MD) can be pursued at company, sector or national levels. “Sector” studies of MD are quite rare, despite providing a potential natural “laboratory” in which...
Sector level analysis of management development: the case of Scottish local authorities (2001)
Studies of management development (MD) can be pursued at company, sector or national levels. "Sector" studies of MD are quite rare, despite providing a potential natural "laboratory" in which a...
Sector level analysis of management development: the case of Scottish local authorities (2001)
Studies of management development (MD) can be pursued at company, sector or national levels. "Sector" studies of MD are quite rare, despite providing a potential natural "laboratory" in which a...
Probing Early Structure Formation with Far-Infrared Background Correlations (2000)
Knox, L., Cooray, A., Eisenstein, D., Haiman, Z.
The large-scale structure of high-redshift galaxies produces correlated anisotropy in the far-infrared background (FIRB). In regions of the sky where the thermal emission from Galactic dust is well...
Annihilating Cold Dark Matter (2000)
Kaplinghat, M., Knox, L., Turner, M. S.
Structure formation with cold dark matter (CDM) predicts halos with a central density cusp, which are observationally disfavored. If CDM particles have an annihilation cross section sigma*v ~...
Dark Energy and the CMB (1999)
We find that current Cosmic Microwave Background (CMB) anisotropy data strongly constrain the mean spatial curvature of the Universe to be near zero, or, equivalently, the total energy density to be...
Anisotropy in the Cosmic Microwave Background at Degree Angular Scales: Python V Results (1999)
Coble, K., Dragovan, M., Kovac, J., Halverson, N. W., Holzapfel, W. L., Knox, L., ...
Observations of the microwave sky using the Python telescope in its fifth season of operation at the Amundsen-Scott South Pole Station in Antarctica are presented. The system consists of a 0.75 m...
New CMB Power Spectrum Constraints from MSAMI (1999)
Wilson, G. W., Knox, L., Dodelson, S., Coble, K., Cheng, E. S., Cottingham, D. A., ...
We present new cosmic microwave background (CMB) anisotropy results from the combined analysis of the three flights of the first Medium Scale Anisotropy Measurement (MSAM1). This balloon-borne...
Comparing Cosmic Microwave Background Datasets (1998)
Knox, L., Bond, J. R., Jaffe, A. H., Segal, M., Charbonneau, D.
To extract reliable cosmic parameters from cosmic microwave background datasets, it is essential to show that the data are not contaminated by residual non-cosmological signals. We describe general...
Estimating the Power Spectrum of the Cosmic Microwave Background (1997)
Bond, J. R., Jaffe, A. H., Knox, L.
We develop two methods for estimating the power spectrum, C_l, of the cosmic microwave background (CMB) from data and apply them to the COBE/DMR and Saskatoon datasets. One method involves a direct...
Detection of Cosmic Microwave Background Anisotropy by the Third Flight of MSAM (1997)
Cheng, E. S., Cottingham, D. A., Fixsen, D. J., Goldin, A. B., Inman, C. A., Knox, L., ...
The third flight of the Medium Scale Anisotropy Measurement (MSAM1), in June 1995, observed a new strip of sky, doubling the sky coverage of the original MSAM1 dataset. MSAM1 observes with a 0.5 deg...
CMB Anisotropy Induced by Cosmic Strings on Angular Scales $>~ 15'$ (1997)
Allen, B., Caldwell, R. R., Dodelson, S., Knox, L., Shellard, E. P. S., Stebbins, A.
We have computed an estimate of the angular power spectrum of the Cosmic Microwave Background (CMB) induced by cosmic strings on angular scales $>~ 15'$, using a numerical simulation of a cosmic...
Cosmic Microwave Background Anisotropy Induced by Cosmic Strings on Angular Scales ≳15′ (1997)
Allen, Bruce, Caldwell, R. R., Dodelson, S., Knox, L., Shellard, E. P. S., Stebbins, A.
We have computed an estimate of the angular power spectrum of the cosmic microwave background induced by cosmic strings on angular scales ≳15′, using a numerical simulation of a cosmic string...
Inflation at the Electroweak Scale (1992)
We present a simple model for slow-rollover inflation where the vacuum energy that drives inflation is of the order of $G_F^{-2}$; unlike most models, the conversion of vacuum energy to radiation...
An Experimental Study of Surface Roughness Assessment Using Image Processing (1992)
DeVoe, D., Knox, L., Zhang, G.
A surface roughness measurement technique, based on an area measurement method using a computer vision system, was investigated for applicability to in-process inspection of surface quality during a...
An Experimental Study of Surface Roughness Assessment Using Image Processing (1992)
DeVoe, Don L., Knox, L., Zhang, G.
A surface roughness measurement technique, based on an area measurement method using a computer vision system, was investigated for applicability to in-process inspection of surface quality during a...