Dark Matter-Induced Baryonic Feedback in Galaxies

Author:

Javier F. Acevedo, Haipeng An, Yilda Boukhtouchen, Joseph Bramante, Mark Richardson, Lucy Sansom

Keyword:

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics of Galaxies (astro-ph.GA)

journal:

date:

2023-09-14 16:00:00

Abstract

We demonstrate that non-gravitational interactions between dark matter and baryonic matter can affect structural properties of galaxies. Detailed galaxy simulations and analytic estimates demonstrate that dark matter which collects inside white dwarf stars and ignites Type Ia supernovae can substantially alter star formation, stellar feedback, and the halo density profile through a dark matter-induced baryonic feedback process, distinct from usual supernova feedback in galaxies.

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