9 papers
Neutron star with dark matter using vector portal
Deepak Kumar, Ranjita K. Mohapatra, Hiranmaya Mishra +1
Compact astrophysical objects, such as neutron star, can provide a unique environment where the interplay between strongly interacting nuclear matter and dark matter (DM) can yield…
Effects of dark matter and magnetic field on neutron star properties in relativistic mean-field theory: A single-fluid approach
Neeshu Rani, M. Mishra, Deepak Kumar +1
Neutron stars, due to their extremely high matter density and strong magnetic field, provide the best environment for exploring new physics beyond the Standard Model of particle ph…
Constraints on maximum neutron star mass from proto-neutron star evolution
Deepak Kumar, Tuhin Malik, Hiranmaya Mishra +1
A proto-neutron star (PNS) gets formed after a successful supernova when the stellar remnant decouples from the ejecta. In this study, we explore a relativistic framework for the f…
Modification of the universal relation between mass, radius and nonradial -mode oscillation in proto-neutron stars
Deepak Kumar, Asit Karan, Anshuman Verma +2
Neutron stars are usually assumed to be cold; however, in certain dynamical astrophysical scenarios such as newly born neutron stars or binary star mergers, the temperature effects…
Analyzing the dense matter equation of states in the light of the compact object HESS J1731-347
Skund Tewari, Sagnik Chatterjee, Deepak Kumar +1
The recent mass () and radius () measurement of HESS J1731-347 made it one of the most fascinating object if it i…
Axion effects on the non-radial oscillations of neutron stars
Deepak Kumar, Hiranmaya Mishra
The effects of axions on quark matter equation of state (EOS) is studied within the three flavor Nambu--Jona-Lasinio model and its effects on on the non-radial oscillations of neut…