5 papers
Bypassed Core Formation in Milky Way-Mass SIDM Halos: Implications for the Local Group Past-Pericenter Scenario
Zhichao Carton Zeng, Odelia V. Hartl, Louis E. Strigari +4
We consider a scenario in which the Milky Way (MW) and M31 have had a previous pericentric passage, and investigate its compatibility with self-interacting dark matter (SIDM). Usin…
Dark matter annihilation signals from the Large Magellanic Cloud and its impact on the Milky Way
Evan Vienneau, Evan Batteas, Addy J. Evans +3
We study the dark matter (DM) annihilation signals from the Large Magellanic Cloud (LMC) and the impact of the LMC on the DM annihilation signals from the Milky Way (MW) halo, usin…
Enhancements in velocity-dependent dark matter annihilation in Galactic subhalos
Odelia V. Hartl, Evan Vienneau, Evan Batteas +3
We examine velocity-dependent dark matter annihilation in subhalos using a sample of six Milky Way-like galaxies from the Aurgia simulation suite. We quantify the enhancement in th…
The Milky Way and M31 Orbital History: Did the Local Group evolve in isolation?
Odelia V. Hartl, Louis E. Strigari
We use new measurements of the M31 proper motion to examine the Milky Way (MW) - M31 orbit and angular momentum. For Local Group (LG) mass consistent with measured values, and assu…
Significant impact of Galactic dark matter particles on annihilation signals from Sagittarius analogues
Evan Vienneau, Addy J. Evans, Odelia V. Hartl +4
We examine the gamma-ray signal from dark matter (DM) annihilation from analogues of the Sagittarius (Sgr) dwarf spheroidal galaxy in the Auriga cosmological simulations. For veloc…