Version 1
: Received: 16 June 2021 / Approved: 21 June 2021 / Online: 21 June 2021 (15:11:58 CEST)
Version 2
: Received: 5 November 2021 / Approved: 8 November 2021 / Online: 8 November 2021 (15:55:37 CET)
Romanello, M.; Menci, N.; Castellano, M. The Epoch of Reionization in Warm Dark Matter Scenarios. Universe 2021, 7, 365, doi:10.3390/universe7100365.
Romanello, M.; Menci, N.; Castellano, M. The Epoch of Reionization in Warm Dark Matter Scenarios. Universe 2021, 7, 365, doi:10.3390/universe7100365.
Romanello, M.; Menci, N.; Castellano, M. The Epoch of Reionization in Warm Dark Matter Scenarios. Universe 2021, 7, 365, doi:10.3390/universe7100365.
Romanello, M.; Menci, N.; Castellano, M. The Epoch of Reionization in Warm Dark Matter Scenarios. Universe 2021, 7, 365, doi:10.3390/universe7100365.
Abstract
InthispaperweinvestigatehowtheReionizationprocessisaffectedbyearlygalaxyformation in different cosmological scenarios. We use a semi-analytic model with suppressed initialpowerspectratoobtaintheUVLuminosityFunctioninthermalWarmDarkMatterandsterileneutrino cosmologies.We retrace the ionization history of intergalactic medium with hot stellaremission only, exploiting fixed and variable photons escape fraction models (fesc). For each cosmology,we find an upper limit to fixedfesc, which guarantees the completion of the process atz<6.7. Theanalysis is tested with two limit hypothesis on high-z ionized hydrogen volume fraction, comparingour predictions with observational results.
Keywords
Reionization; Warm Dark Matter; sterile neutrinos; escape fraction;
Subject
Physical Sciences, Astronomy and Astrophysics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Commenter: Massimiliano Romanello
Commenter's Conflict of Interests: Author