activity
20212026
most citedThe Local Group Mass in the light of Gaia

37 citations · 57 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.GA2026

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…

astro-ph.HE2025

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…

astro-ph.HE2025

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…

astro-ph.GA2024★ 1 cited

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…

astro-ph.HE2024

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…

astro-ph.GA2022★ 37 cited

The Local Group Mass in the light of Gaia

David Benisty, Eugene Vasiliev, N. Wyn Evans +3

High accuracy proper motions (PMs) of M31 and other Local Group satellites have now been provided by the {\it Gaia} satellite. We revisit the Timing Argument to compute the total m…

astro-ph.CO2021★ 19 cited

Local Group timing argument and virial theorem mass estimators from cosmological simulations

Odelia V. Hartl, Louis E. Strigari

We identify Local Group (LG) analogs in the IllustrisTNG cosmological simulation, and use these to study two mass estimators for the LG: one based on the timing argument (TA) and o…