4 papers
Three Birds with One Stone: Core-Collapsed SIDM Halos as the Common Origin of Dense Perturbers in Lenses, Streams, and Satellites
Hai-Bo Yu
We show that core-collapsed self-interacting dark matter halos of mass , originally simulated to explain the dense perturber of the GD-1 stellar stream, also…
Illuminating Black Hole Shadow with Dark Matter Annihilation
Yifan Chen, Ran Ding, Yuxin Liu +4
The Event Horizon Telescope (EHT) has significantly advanced our ability to study black holes, achieving unprecedented spatial resolution and revealing horizon-scale structures. No…
Gravitational Waves from Primordial Black Hole Dark Matter Spikes
Wei-Xiang Feng, Simeon Bird, Hai-Bo Yu
The origin of the binary black hole mergers observed by LIGO--Virgo--KAGRA remains an open question. We calculate the merger rate from primordial black holes (PBHs) within the dens…
Gravothermal collapse and the diversity of galactic rotation curves
M. Grant Roberts, Manoj Kaplinghat, Mauro Valli +1
The rotation curves of spiral galaxies exhibit a great diversity that challenge our understanding of galaxy formation and the nature of dark matter. Previous studies showed that in…