On Type Ia Supernovae From The Collisions of Two White Dwarfs

Understand

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.
• 2008) 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 0.6 solar mass white dwarfs at various impact parameters and mass resolutions.