84 citations · 530 across the 16 of their papers we have counts for
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Exotic energy injection in the early universe II: CMB spectral distortions and constraints on light dark matter
Hongwan Liu, Wenzer Qin, Gregory W. Ridgway +1
We calculate the post-recombination contribution to the Cosmic Microwave Background (CMB) spectral distortion due to general exotic energy injections, including dark matter (DM) de…
Exotic energy injection in the early universe I: a novel treatment for low-energy electrons and photons
Hongwan Liu, Wenzer Qin, Gregory W. Ridgway +1
Decaying or annihilating dark matter and other exotic energy injections can modify the spectrum of the universe's photon bath, resulting in e.g. new contributions to spectral disto…
Lyman- Constraints on Cosmic Heating from Dark Matter Annihilation and Decay
Hongwan Liu, Wenzer Qin, Gregory W. Ridgway +1
We derive new constraints on models of decaying and annihilating dark matter (DM) by requiring that the energy injected into the intergalactic medium (IGM) not overheat it at late…
DarkHistory: A code package for calculating modified cosmic ionization and thermal histories with dark matter and other exotic energy injections
Hongwan Liu, Gregory W. Ridgway, Tracy R. Slatyer
We present a new public Python package, DarkHistory, for computing the effects of dark matter annihilation and decay on the temperature and ionization history of the early universe…