381 citations · 5.6k across the 64 of their papers we have counts for
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The GMRT EoR Experiment: Limits on Polarized Sky Brightness at 150 MHz
Ue-Li Pen, Tzu-Ching Chang, Christopher M. Hirata +5
The GMRT reionization effort aims to map out the large scale structure of the Universe during the epoch of reionization (EoR). Removal of polarized Galactic emission is a difficult…
The Shadow of Dark Matter
Stefano Profumo, Kris Sigurdson
We carry out a model independent study of resonant photon scattering off dark matter (DM) particles. The DM particle chi_1 can feature an electric or magnetic transition dipole mom…
The Spin-Resolved Atomic Velocity Distribution and 21-cm Line Profile of Dark-Age Gas
Christopher M. Hirata, Kris Sigurdson
The 21-cm hyperfine line of atomic hydrogen (HI) is a promising probe of the cosmic dark ages. In past treatments of 21-cm radiation it was assumed the hyperfine level populations…
What mass are the smallest protohalos?
Stefano Profumo, Kris Sigurdson, Marc Kamionkowski
We calculate the kinetic-decoupling temperature for weakly interacting massive particles (WIMPs) in supersymmetric (SUSY) and universal-extra-dimension (UED) models that can accoun…
Cosmological Signatures of Interacting Neutrinos
Nicole F. Bell, Elena Pierpaoli, Kris Sigurdson
We investigate signatures of neutrino scattering in the Cosmic Microwave Background (CMB) and matter power spectra, and the extent to which present cosmological data can distinguis…
Measuring the Primordial Deuterium Abundance During the Cosmic Dark Ages
Kris Sigurdson, Steven R. Furlanetto
We discuss how measurements of fluctuations in the absorption of cosmic microwave background (CMB) photons by neutral gas during the cosmic dark ages, at redshifts z ~ 7--200, coul…