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Realistic sterile neutrino dark matter with keV mass does not contradict cosmological bounds
Alexey Boyarsky, Julien Lesgourgues, Oleg Ruchayskiy +1
Previous fits of sterile neutrino dark matter models to cosmological data assumed a peculiar production mechanism, which is not representative of the best-motivated particle physic…
Lyman-alpha constraints on warm and on warm-plus-cold dark matter models
Alexey Boyarsky, Julien Lesgourgues, Oleg Ruchayskiy +1
We revisit Lyman-alpha bounds on the dark matter mass in Lambda Warm Dark Matter (Lambda-WDM) models, and derive new bounds in the case of mixed Cold plus Warm models (Lambda-CWDM)…
Bounds on Light Dark Matter
Alexey Boyarsky, Oleg Ruchayskiy
In this talk we review existing cosmological and astrophysical bounds on light (with the mass in keV - MeV range) and super-weakly interacting dark matter candidates. A particular…
A lower bound on the mass of Dark Matter particles
Alexey Boyarsky, Oleg Ruchayskiy, Dmytro Iakubovskyi
We discuss the bounds on the mass of Dark Matter (DM) particles, coming from the analysis of DM phase-space distribution in dwarf spheroidal galaxies (dSphs). After reviewing the e…