Optimal Binning of the Primordial Power Spectrum (2009)
Paykari, Paniez, Jaffe, Andrew H.
The primordial power spectrum describes the initial perturbations in the Universe which eventually grew into the large-scale structure we observe today, and thereby provides an indirect probe of...
Nonlinear Effects in the Amplitude of Cosmological Density Fluctuations (2009)
Juszkiewicz, Roman, Feldman, Hume A., Fry, J. N., Jaffe, Andrew H.
The amplitude of cosmological density fluctuations, $\sigma_8$, has been studied and estimated by analysing many cosmological observations. The values of the estimates vary considerably between the...
Accurate estimators of power spectra in N-body simulations (2008)
Colombi, Stephane, Jaffe, Andrew H., Novikov, Dmitri, Pichon, Christophe
abridged] A method to rapidly estimate the Fourier power spectrum of a point distribution is presented. This method relies on a Taylor expansion of the trigonometric functions. It yields the Fourier...
Likelihood Analysis of Large-Scale Flows (2007)
We apply a likelihood analysis to the data of Lauer & Postman 1994 With P (k)
Predicting and analyzing topological correlations in the CMB (2006)
Niarchou, Anastasia, Jaffe, Andrew H.
The Cosmic Microwave Background (CMB) power spectrum derived from the first year WMAP data demonstrates an intriguing lack of power at large scales that cannot be accounted for within the framework...
Observing Gravitational Radiation with QSO Proper Motions and the SKA (2004)
We discuss the ability of the SKA to observe QSO proper motions induced by long-wavelength gravitational radiation. We find that the SKA, configured for VLBI with multiple beams at high frequency (8...
Large-scale power in the CMB and new physics: an analysis using Bayesian model comparison (2003)
Niarchou, Anastasia, Jaffe, Andrew H., Pogosian, Levon
One of the most tantalizing results from the WMAP experiment is the suggestion that the power at large scales is anomalously low when compared to the prediction of the ``standard'' Lambda-CDM model....
Predicting the Polarization of The Microwave Background from the WMAP Temperature Maps (2003)
In this paper, we study how to predict the polarization of the Cosmic Microwave Background using knowledge of only the temperature (intensity) and the cross-correlation between temperature and...
Recent Results from the MAXIMA Experiment (2003)
Jaffe, Andrew H., Abroe, Matthew, Borrill, Julian, Collins, Jeff, Ferreira, Pedro, Hanany, Shaul, ...
MAXIMA is a balloon-borne platform for measuring the anisotropy of the Cosmic Microwave Background (CMB). It has measured the CMB power spectrum with a ten-arcminute FWHM beam, corresponding to a...
CMB Likelihood Functions for Beginners and Experts (2003)
Jaffe, Andrew H., Bond, J. R., Ferreira, P. G., Knox, L. E.
Although the broad outlines of the appropriate pipeline for cosmological likelihood analysis with CMB data has been known for several years, only recently have we had to contend with the full,...
Gravitational Waves Probe the Coalescence Rate of Massive Black Hole Binaries (2002)
Jaffe, Andrew H., Backer, Donald C.
We calculate the expected nHz--$\mu$Hz gravitational wave (GW) spectrum from coalescing Massive Black Hole (MBH) binaries resulting from mergers of their host galaxies. We consider detection of this...
Detection of Gravitational Waves from Inflation (2000)
Kamionkowski, Marc, Jaffe, Andrew H.
Recent measurements of temperature fluctuations in the cosmic microwave background (CMB) indicate that the Universe is flat and that large-scale structure grew via gravitational infall from...
Secondary CMB Anisotropies from Cosmological Reionization (2000)
Gnedin, Nickolay Y., Jaffe, Andrew H.
We use numerical simulation of cosmological reionization to calculate the secondary CMB anisotropies in a representative flat low density cosmological model. We show that the kinetic...
Polarization pursuers’ guide (2000)
Jaffe, Andrew H., Kamionkowski, Marc, Wang, Limin
We calculate the detectability of the polarization of the cosmic microwave background (CMB) as a function of the sky coverage, angular resolution, and instrumental sensitivity for a hypothetical...
A Polarization Pursuers' Guide (1999)
Jaffe, Andrew H., Kamionkowski, Marc, Wang, Limin
We calculate the detectability of the polarization of the cosmic microwave background (CMB) as a function of the sky coverage, angular resolution, and instrumental sensitivity for a hypothetical...
Simultaneous Estimation of Noise and Signal in Cosmic Microwave Background Experiments (1999)
Ferreira, Pedro G., Jaffe, Andrew H.
To correctly analyse data sets from current microwave detection technology, one is forced to estimate the sky signal and experimental noise simultaneously. Given a time-ordered data set we propose a...
Using the Comoving Maximum of the Galaxy Power Spectrum to Measure Cosmological Curvature (1999)
Broadhurst, Tom, Jaffe, Andrew H.
The large-scale maximum at k~0.05 identified in the power-spectrum of galaxy fluctuations provides a co-moving scale for measuring cosmological curvature. In shallow 3D surveys the peak is broad, but...
The Angular Three-Point Correlation Function in the Quasilinear Regime (1999)
Buchalter, Ari, Kamionkowski, Marc, Jaffe, Andrew H.
We calculate the normalized angular three-point correlation function (3PCF), $q$, as well as the normalized angular skewness, $s_3$, assuming the small-angle approximation, for a biased mass...
WOMBAT & FORECAST: Making Realistic Maps of the Microwave Sky (1999)
Jaffe, Andrew H., Gawiser, Eric, Finkbeiner, Douglas, Baker, Joanne C., Balbi, Amedeo, Davis, Marc, ...
The Wavelength-Oriented Microwave Background Analysis Team (WOMBAT) is constructing microwave maps which will be more realistic than previous simulations. Our foreground models represent a...
Computing challenges of the Cosmic Microwave Background (1999)
Bond, J. Richard, Crittenden, Robert G., Jaffe, Andrew H., Knox, Lloyd
The Cosmic Microwave Background (CMB) encodes information on the origin and evolution of the universe, buried in a fractional anisotropy of one part in 100,000 on angular scales from arcminutes to...
Constraining Large Scale Structure Theories with the Cosmic Background Radiation (1998)
Bond, J. Richard, Jaffe, Andrew H.
We review the relevant 10+ parameters associated with inflation and matter content; the relation between LSS and primary and secondary CMB anisotropy probes; COBE constraints on energy injection;...
Calculation of the Ostriker-Vishniac effect in cold dark matter models (1998)
Jaffe, Andrew H., Kamionkowski, Marc
We present a new derivation of the cosmic microwave background anisotropy spectrum from the Ostriker-Vishniac effect for an open, flat, or closed universe, and calculate the anisotropy expected in...
CMB Power Spectrum Estimation (1997)
Knox, Lloyd, Bond, J. Richard, Jaffe, Andrew H.
We explore power spectrum estimation in the context of a Gaussian approximation to the likelihood function. Using the Saskatoon data, we estimate the power averaged through a set of ten filters...
Cosmic Parameter Estimation Combining Sub-Degree CMB Experiments with COBE (1996)
Bond, J. Richard, Jaffe, Andrew H.
We describe the Bayesian-based signal-to-noise eigenmode method for cosmological parameter estimation, show how it can be used to optimally compress large CMB anisotropy data sets to manageable...
Cosmological Parameter Estimation Combining sub-degree CMB experiments with COBE (1996)
J. Richard Bond, Andrew H. Jaffe
We describe the Bayesian-based signal-to-noise eigenmode method for cosmological parameter estimation, show how it can be used to optimally compress large CMB anisotropy data sets to manageable...
Quasi-Linear Evolution of Compensated Cosmological Perturbations: The Nonlinear Sigma Model (1993)
We consider the evolution of perturbations to a flat FRW universe that arise from a ``stiff source,'' such as a self-ordering cosmic field that forms in a global symmetry-breaking phase transition...
Minimal Microwave Anisotropy from Perturbations Induced at Late Times (1993)
Jaffe, Andrew H., Stebbins, Albert, Frieman, Joshua A.
Aside from primordial gravitational instability of the cosmological fluid, various mechanisms have been proposed to generate large-scale structure at relatively late times, including, e.g.,...
Limits on Neutrino Radiative Decay from Sn1987a (1992)
Jaffe, Andrew H., Fenimore, Ed, Turner, Michael S.
We calculate limits on the properties of neutrinos using data from gamma-ray detectors on the Pioneer Venus Orbiter and Solar Max Mission satellites. A massive neutrino decaying in flight from the...
Nonlinear Effects in the Amplitude of Cosmological Density Fluctuations
Roman Juszkiewicz, Hume A. Feldman, J. N. Fry, Andrew H. Jaffe
The amplitude of cosmological density fluctuations, σ8, has been studied and estimated by analysing many cosmological observations. The values of the estimates vary considerably between the various...