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By accretion of hydrogen from a nearby star which ignites and starts nuclear fusion in a runaway manner. The explosion is only on the surface of the white dwarf - this is a nova [See related question]
If however, it accretes enough hydrogen to push it's mass over the Chandrasekhar limit [See related link] of about 1.38 solar masses, the whole white dwarf will explode as a supernova type Ia [See related link]
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What causes a white dwarf supernova?
A white dwarf supernova can only happen in binary pairs where the white dwarf rips matter from the larger star and eventually becomes unstable and it collapses in on itself.
What is a small star that only gives of faint light and are cool?
That can either be an old white dwarf, a red dwarf. or a brown dwarf.
What is the next stage in the life of a lower-mass main-sequence star?
white dwarf. unless you count black dwarf of which none have been observed, only theorized.
Does a white dwarf have a event horizon?
No. Only a black hole has an event horizon.
Is it true or fault that A white dwarf star is about the same size as the sun?
False. Although the Sun is considered a yellow dwarf, it is a young, healthy star. A white dwarf is the dying remnant of a red giant star. They are generally only about the size of Earth.
Will the Sun explode once it becomes a white dwarf?
No. White dwarfs can only produce explosions in close binary systems.
Who is the only dwarf in Snow White who has no hair?
in snow white, the only bald and beardless dwarf is dopey.
Can robo dwarf hamsters eat erasers?
Yes, but only 176 a day or they'll explode.
What happens when stars get old?
if it is massive enough, it will explode into a super or hyper nova. if it is not massive enough, it will expand and turn into a white dwarf. if any of this is wrong don't blame me I'm only 13.
What causes a white dwarf supernova?
A white dwarf supernova can only happen in binary pairs where the white dwarf rips matter from the larger star and eventually becomes unstable and it collapses in on itself.
Who is the only dwarf that speaks in Snow White?
doc
Is the sun larger than a white dwarf?
YES. A typical white dwarf star is only a bit bigger than the Earth.
What is a small star that only gives of faint light and are cool?
That can either be an old white dwarf, a red dwarf. or a brown dwarf.
Who is the only dwarf in Snow White with blue eyes?
Dopey
Why would a supergiant have a brighter absolute magintude than a white dwarf?
A supergiant is much larger than a white dwarf. A supergiant can be 10 to 70 times the size of our Sun, whereas a white dwarf is only about the size of the Earth.
Who was the only dwarf in 'Snow White' that wore glasses?
his name is DOC.
What is the next stage in the life of a lower-mass main-sequence star?
white dwarf. unless you count black dwarf of which none have been observed, only theorized.
