Cooling of Dark-Matter Admixed Neutron Stars with density-dependent Equation of State

Understand

We propose a dark-matter (DM) admixed density-dependent equation of state where the fermionic DM interacts with the nucleons via Higgs portal.

• Presence of DM can hardly influence the particle distribution inside neutron star (NS) but can significantly affect the structure as well as equation of state (EOS) of NS.
• Introduction of DM inside NS softens the equation of state.
• We explored the effect of variation of DM mass and DM Fermi momentum on the NS EOS.