289 citations · 1.1k across the 38 of their papers we have counts for
3 papers · 1 filter
Early Dark Energy beyond slow-roll: implications for cosmic tensions
Ravi Kumar Sharma, Subinoy Das, Vivian Poulin
In this work, we explore the possibility that Early Dark Energy (EDE) is dynamical in nature and study its effect on cosmological observables. We introduce a parameterization of th…
Non-thermal warm dark matter limits from small-scale structure
Arka Banerjee, Subinoy Das, Anshuman Maharana +2
We present small-scale structure constraints on sterile dark matter produced from a heavy mediator particle, inspired by models of moduli decay. Dark matter particles produced thro…
Mass varying dark matter and its cosmological signature
Anirban Das, Subinoy Das, Shiv K. Sethi
Nontrivial dark sector physics continues to be an interesting avenue in our quest to the nature of dark matter. In this paper, we study the cosmological signatures of mass-varying…