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May 8 – 10, 2023
University of Pittsburgh
US/Eastern timezone

Dark Matter-Induced Baryonic Feedback in Galaxies

May 9, 2023, 2:45 PM
15m
Lawrence Hall 203

Lawrence Hall 203

Dark Matter DM II

Speaker

Yilda Boukhtouchen (Queen’s University)

Description

In this talk, we discuss a baryonic feedback mechanism induced by dark matter ignition of white dwarf populations, and its potential effects on galaxy evolution and star formation. Previous works have shown that Type Ia supernova ignitions of sub-Chandrasekhar white dwarfs may be caused by asymmetric dark matter captured within white dwarfs, leading to the formation and subsequent collapse of a dark matter core. These dark matter-induced supernovae become an additional source of baryonic feedback in the galaxy. We implement this dark feedback mechanism in a simulation of an isolated galaxy, using the galaxy evolution code GIZMO, and discuss preliminary results of the effects of dark feedback on star formation and dark matter profiles.

Primary authors

Haipeng An Javier Acevedo (SLAC) Joseph Bramante (Queen's University; Perimeter Institute) Lucy Sansom Mark Richardson (McDonald Institute) Yilda Boukhtouchen (Queen’s University)

Presentation materials