Constraining Bosonic Dark Matter-Baryon Interactions from Neutron Star Collapse

Understand

Dark matter (DM) may be captured around a neutron star (NS) through DM-nucleon interactions.

• We observe that the enhancement of such capturing is particularly significant when the DM velocity and/or momentum transfer depend on the DM-nucleon scattering cross-section.
• This could potentially lead to the formation of a black hole within the typical lifetime of the NS.
• As the black hole expands through the accretion of matter from the NS, it ultimately results in the collapse of the host.