4 papers
The two faces of tides: gravitational instability during galaxy mergers
Trisha Khan, Ayush Hazarika
Gravitational instability is a fundamental mechanism driving collapse of interstellar gas, yet in dynamically evolving environments such as galaxy mergers, external tidal fields ca…
Revealing Dark Matter's Role in Neutron Stars Anisotropy: A Bayesian Approach Using Multi-messenger Observations
Xue-Zhi Liu, Premachand Mahapatra, Chun Huang +3
Dark matter (DM) continues to evade direct detection, but neutron stars (NSs) serve as natural laboratories where even a modest DM component can alter their structure. While many s…
Photon Ring Dimming as a Signature of Photon-Axion Conversion in Janis-Newman-Winicour Naked Singularity
Ayush Hazarika, Premachand Mahapatra, Subhadip Sau
The possible existence of axions in the universe introduces the intriguing possibility of photon-axion conversion in strong magnetic fields, particularly near compact objects like…
Implications of Fermionic Dark Matter Interactions on Anisotropic Neutron Stars
Premachand Mahapatra, Chiranjeeb Singha, Ayush Hazarika +1
The presence of Dark matter (DM) within a neutron star (NS) can substantially influence the macroscopic properties. It is commonly assumed that the pressure inside an NS is isotrop…