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Testable polarization predictions for models of CMB isotropy anomalies
Cora Dvorkin, Hiranya V. Peiris, Wayne Hu
Anomalies in the large-scale CMB temperature sky measured by WMAP have been suggested as possible evidence for a violation of statistical isotropy on large scales. In any physical…
Impact of reionization on CMB polarization tests of slow-roll inflation
Michael J. Mortonson, Wayne Hu
Estimates of inflationary parameters from the CMB B-mode polarization spectrum on the largest scales depend on knowledge of the reionization history, especially at low tensor-to-sc…
Photometric Redshift Requirements for Self-Calibration of Cluster Dark Energy Studies
Marcos Lima, Wayne Hu
The ability to constrain dark energy from the evolution of galaxy cluster counts is limited by the imperfect knowledge of cluster redshifts. Ongoing and upcoming surveys will mostl…
Self Calibration of Tomographic Weak Lensing for the Physics of Baryons to Constrain Dark Energy
Andrew R. Zentner, Douglas H. Rudd, Wayne Hu
Numerical studies indicate that uncertainties in the treatment of baryonic physics can affect predictions for shear power spectra at a level that is significant for forthcoming sur…
CMB Cluster Lensing: Cosmography with the Longest Lever Arm
Wayne Hu, Daniel E. Holz, Chris Vale
We discuss combining gravitational lensing of galaxies and the cosmic microwave background (CMB) by clusters to measure cosmographic distance ratios, and hence dark energy paramete…
A Parameterized Post-Friedmann Framework for Modified Gravity
Wayne Hu, Ignacy Sawicki
We develop a parameterized post-Friedmann (PPF) framework which describes three regimes of modified gravity models that accelerate the expansion without dark energy. On large scale…