3 papers
astro-ph.CO2025
Constraints on Primordial Magnetic Fields from the Lyman-α forest
Mak Pavičević, Vid Iršič, Matteo Viel +5
We present the first constraints on primordial magnetic fields from the Lyman- forest using full cosmological hydrodynamic simulations. At the scales and redshifts probed by the…
astro-ph.CO2020
BBN constraints on dark radiation isocurvature
Peter Adshead, Gilbert Holder, Pranjal Ralegankar
The existence of dark radiation that is completely decoupled from the standard model in the early Universe leaves open the possibility of an associated dark radiation isocurvature…
hep-ph2019
Reheating in two-sector cosmology
Peter Adshead, Pranjal Ralegankar, Jessie Shelton
We analyze reheating scenarios where a hidden sector is populated during reheating along with the sector containing the Standard Model. We numerically solve the Boltzmann equations…