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Results tagged with supernova
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user 34155
Questions regarding stars which increase suddenly in energy output due to an explosion which ejected much of its mass.
4
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1
answer
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Can a star be massive enough to go 'supernova' yet not be massive enough to leave behind a n...
From what I understand, stars that explode as a supernova at the end of their lives become either a black hole or a neutron star, and less massive stars that do not explode become white dwarves, but... …
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5
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1
answer
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Why are type 1b and type 1c supernovae called type 1 rather than type 2; if they result from...
What similarities do types Ib and Ic supernovae have in common with type 1a?
Are their spectra or their magnitudes more similar to accreting white dwarfs than the other supermassive, main sequence, ex …
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2
votes
1
answer
58
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What is the relation between size (radius) of an astronomical object and the speed of oscill...
From the year-end issue of New Scientist Magazine (Dec. 18-31,2021):
Astronomy:
'Space Cow' explosion was probably a failed supernova'
Page 10: 'They found that the strength of this radiation oscillated …
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1
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2
answers
172
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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.....
- 5,585
6
votes
1
answer
191
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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 of matter, they explode fairly violently, but not as violently as a type 1a supernova, and the white dwarf is still there... …
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1
vote
1
answer
118
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Does the lower value of the Hubble Constant predicted by the Planck Satellite and now confir...
Does Reiss have to return his Nobel (and the prize money) if it turns out he was wrong about the distances to those supernova, the value of the Hubble Constant and the existence of dark energy? …
- 5,585
4
votes
1
answer
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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? …
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