SIMBAD references

2009MNRAS.399L.156R - Mon. Not. R. Astron. Soc., 399, L156-L159 (2009/October-2)

On type Ia supernovae from the collisions of two white dwarfs.

RASKIN C., TIMMES F.X., SCANNAPIECO E., DIEHL S. and FRYER C.

Abstract (from CDS):

We explore collisions between two white dwarfs as a pathway for making Type Ia supernovae (SNIa). White dwarf number densities in globular clusters allow 10-100, redshift ≲1 collisions per year, and observations by Chomiuk et al. of globular clusters in the nearby S0 galaxy NGC 7457 have detected what is likely to be a SNIa remnant. We carry out simulations of the collision between two 0.6M white dwarfs at various impact parameters and mass resolutions. For impact parameters less than half the radius of the white dwarf, we find such collisions produce ~0.4Mof56Ni, making such events potential candidates for underluminous SNIa or a new class of transients between Novae and SNIa.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): hydrodynamics - nuclear reactions, nucleosynthesis, abundances - supernovae: general - white dwarfs

Simbad objects: 1

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2021.07.27-17:10:33

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