4 papers
Enhanced Cosmic-Ray Cooling in AGN from Dark Matter Deep Inelastic Scattering
Linjie Li, Chih-Ting Lu, Arvind Kumar Mishra +2
The diffusion of high-energy cosmic rays (CRs) through the dark matter (DM) spikes of active galactic nuclei entails significant energy loss via interactions with DM. While previou…
Probing Gauged Sub-GeV Dark Matter via Cosmic Ray Cooling in Active Galactic Nuclei
Arvind Kumar Mishra, Ning Liu, Chih-Ting Lu
Cosmic rays (CRs) traversing the dark matter (DM) spike surrounding active galactic nuclei (AGNs) can be cooled through interactions with DM particles. In this study, we investigat…
Neutron Star Collapse From Accretion: a Probe of Massive Dark Matter Particles
Ning Liu, Arvind Kumar Mishra
We explore the multi-scatter capturing of the massive dark matter (DM) particle inside the neutron star via a momentum-dependent dark matter-nucleon scattering cross-section. We fi…
Constraining Bosonic Dark Matter-Baryon Interactions from Neutron Star Collapse
Chih-Ting Lu, Arvind Kumar Mishra, Lei Wu
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…