38 citations · 50 across the 3 of their papers we have counts for
6 papers
Bounds on sterile neutrino lifetime and mixing angle with active neutrinos by global 21 cm signal
Pravin Kumar Natwariya, Alekha C. Nayak
Sterile neutrinos can be a possible candidate for dark matter. Sterile neutrinos are radiatively unstable and can inject photon energy into the intergalactic medium (IGM). The inje…
Dark matter admixed neutron star properties in the light of gravitational wave observations: a two fluid approach
Arpan Das, Tuhin Malik, Alekha C. Nayak
We consider the effect of density dependent dark matter on the neutron star mass, radius, and tidal deformability. Nuclear matter (normal matter) as well as the fermionic dark matt…
Baryon-Dark matter interaction in presence of magnetic fields in light of EDGES signal
Jitesh R. Bhatt, Pravin Kumar Natwariya, Alekha C. Nayak +1
We have shown that in presence of a cosmic magnetic field the bounds on baryon dark matter cross-section (), dark-matter mass () and values of the magnetic field ($B_0…
Viscous dark matter and 21 cm cosmology
Jitesh R. Bhatt, Arvind Kumar Mishra, Alekha C. Nayak
The EDGES experiment has detected the global absorption signal of 21 cm line at in cosmic dawn era and reported its amplitude larger than the standard cosmological predic…
Confronting nuclear equation of state in the presence of dark matter using GW170817 observation in relativistic mean field theory approach
Arpan Das, Tuhin Malik, Alekha C. Nayak
We confront admixture of dark matter inside neutron star using gravitational wave constraints coming from binary neutron star merger. We consider a relativistic mean field model in…
Elko and mass dimension one field of spin one half: causality and Fermi statistics
Dharam Vir Ahluwalia, Alekha Chandra Nayak
We review how Elko arise as an extension of complex valued four-component Majorana spinors. This is followed by a discussion that constrains certain elements of phase freedom. A pr…