11 papers
Universality in spacetime modes of quarkyonic stars
D. Dey, Jeet Amrit Pattnaik, R. N. Panda +1
The gravitational wave mode spectrum presents a unique window into the dense interior of neutron stars, probing physics inaccessible to electromagnetic observations. This work…
Quarkyonic Neutron Stars as Candidates for the GW230529 Mass-Gap Object
Jeet Amrit Pattnaik, S. K. Patra
We examine whether quarkyonic equations of state (EOS) can account for compact objects in the - mass range reported for the GW230529 gravitational-wave event. Th…
Anomalous Behavior of Giant Monopole Resonance Energy with Nuclear Matter Incompressibility in the framework of Relativistic Mean Field Formalism and Coherent Density Fluctuation Model
Jeet Amrit Pattnaik, R. N. Panda, M. Bhuyan +1
The finite nucleus incompressibility is evaluated using the coherent density fluctuation model with the extended relativistic mean field density. The relativistic energy dens…
Dirac vs. Majorana Dark Matter Imprints on Neutron Star Observables
M. Bhuyan, Jeet Amrit Pattnaik, S. K. Patra +1
The fundamental character of a fermionic dark matter, whether it is a Dirac or Majorana particle remains a key unresolved issue whose answer would profoundly affect dark-sector phe…
Core or Halo? Two-Fluid Analysis of Dark Matter-Admixed Quarkyonic Stars in the Multi-Messenger Era
Jeet Amrit Pattnaik, D. Dey, M. Bhuyan +2
For the first time, we explore dark matter (DM) admixed quarkyonic stars (DAQSs) within a two-fluid formalism, where the normal/visible sector is modeled by a quarkyonic equation o…
-mode oscillation of neutron star in a new relativistic hybrid model
D. Dey, Jeet Amrit Pattnaik, R. N. Panda +1
We investigate how the pulsation frequencies of axial gravitational-wave modes (-modes) in a non-rotating neutron star depend on its composition, particularly when including qua…