417 citations · 4.1k across the 41 of their papers we have counts for
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Charged-particle decay and suppression of small-scale power
Kris Sigurdson, Marc Kamionkowski
We study the suppression of the small-scale power spectrum due to the decay of charged matter to dark matter prior to recombination. Prior to decay, the charged particles couple to…
Generalized Analysis of Weakly-Interacting Massive Particle Searches
Andriy Kurylov, Marc Kamionkowski
We perform a generalized analysis of data from WIMP search experiments for point-like WIMPs of arbitrary spin and general Lorenz-invariant WIMP-nucleus interaction. We show that in…
Can Cosmic Shear Shed Light on Low Cosmic Microwave Background Multipoles?
Michael Kesden, Marc Kamionkowski, Asantha Cooray
The lowest multipole moments of the cosmic microwave background (CMB) are smaller than expected for a scale-invariant power spectrum. One possible explanation is a cutoff in the pr…
Sunyaev-Zeldovich Fluctuations from the First Stars?
S. Peng Oh, Asantha Cooray, Marc Kamionkowski
WMAP's detection of high electron-scattering optical depth suggests substantial star formation at high redshift z~17 +/- 5. On the other hand, the recovered sigma_8 ~ 0.84 +/-0.04…
Phantom Energy and Cosmic Doomsday
Robert R. Caldwell, Marc Kamionkowski, Nevin N. Weinberg
Cosmologists have long wondered whether the Universe will eventually re-collapse and end with a Big Crunch, or expand forever, becoming increasingly cold and empty. Recent evidence…