Delayed Detonation Thermonuclear Supernovae with an Extended Dark Matter Component
Abstract
We present spherically symmetric simulations of the thermonuclear explosion of a white dwarf admixed with an extended component of fermionic dark matter, using the deflagration model with the deflagration-detonation transition. In all the dark matter admixed models we have considered, the dark matter is left behind after the explosion as a compact dark star. The presence of dark matter lengthens the deflagration phase to produce a similar amount of iron-group elements and more thermoneutrinos. Dark matter admixed models also give dimmer but slowly declining light curves, consistent with some observed peculiar supernovae. Our results suggest a formation path for dark compact objects that mimic sub-solar-mass black holes as dark gravitational sources.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 2021
- DOI:
- 10.3847/1538-4357/abfd32
- arXiv:
- arXiv:2012.06857
- Bibcode:
- 2021ApJ...914..138C
- Keywords:
-
- Dark matter;
- Type Ia supernovae;
- Hydrodynamical simulations;
- Supernova neutrinos;
- Light curves;
- 353;
- 1728;
- 767;
- 1666;
- 918;
- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Cosmology and Nongalactic Astrophysics
- E-Print:
- 17 pages, 17 figures