25 citations · 38 across the 2 of their papers we have counts for
9 papers
Non-thermal Hot Dark Matter from Inflaton/Moduli Decay: The Momentum Distribution and Relaxing the Cosmological Mass Bound
Sukannya Bhattacharya, Subinoy Das, Koushik Dutta +3
Decay of the inflaton or moduli which dominated the energy density of the universe at early times leads to a matter to radiation transition epoch. We consider non-thermal sterile d…
Implications of the NANOGrav result on primordial gravitational waves in nonstandard cosmologies
Sukannya Bhattacharya, Subhendra Mohanty, Priyank Parashari
Recently, the NANOGrav collaboration has reported evidence for a common-spectrum stochastic process, which might be interpreted as the first ever detection of stochastic gravitatio…
Non-thermal production of lepton asymmetry and dark matter in minimal seesaw with right handed neutrino induced Higgs potential
Rome Samanta, Anirban Biswas, Sukannya Bhattacharya
Within Type-I seesaw mechanism, Higgs mass can be dynamically generated via quantum effects of the right handed neutrinos assuming the potential is nearly conformal at the Ultra-Vi…
Fibre inflation and precision CMB data
Sukannya Bhattacharya, Koushik Dutta, Mayukh Raj Gangopadhyay +2
Generic features of models of inflation obtained from string compactifications are the correlations between the model parameters and the postinflationary evolution of the universe.…
Primordial black holes and gravitational waves in nonstandard cosmologies
Sukannya Bhattacharya, Subhendra Mohanty, Priyank Parashari
For primordial black holes (PBHs) to form a considerable fraction of cold dark matter, the required amplitude of primordial scalar perturbations is quite large ($P_ζ(k) \sim 10^{-2…
Probing the era of reheating for reconstructed inflationary potential in the RS II braneworld
Sukannya Bhattacharya, Kumar Das, Mayukh R. Gangopadhyay
We analyse the epoch of reheating after an inflationary phase in the Randal Sundrum(RS) Type- braneworld, where we did not consider any particular model of inflation, but r…