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Questions about electron degenerate stellar remnants.

1 vote
2 answers
172 views

What does an electron-capture supernova leave behind? A white dwarf, a neutron star or nothing?

Somehow, none of the many articles I've read about the recent discovery of electron-capture supernovae has specifically said what they leave behind as remnants.....
Kurt Hikes's user avatar
  • 5,585
6 votes
1 answer
191 views

Why does a white dwarf sometimes go 'nova' and sometimes supernova (type 1a)?

Obviously, when a white dwarf goes truly supernova, there is nothing left, not even, I have heard, a neutron star or black hole... But when certain white dwarf stars accrete certain amounts or types o …
Kurt Hikes's user avatar
  • 5,585
4 votes
1 answer
101 views

Do neutrinos account for approximately 99% of the energy released by Type 1a supernovae as t...

So many accounts say that neutrinos carry away about 99 percent of the energy from a 'traditional' supernova (giant star at end of its life), but what about a white dwarf detonated after accretion?
Kurt Hikes's user avatar
  • 5,585