... as a helium white dwarf composed chiefly of helium-4 nuclei. ... or mass loss
due to a large planetary companion.
Where a star ends up at the end of its life depends on the mass it was born with.
... A typical white dwarf is about as massive as the Sun, yet only slightly bigger ...
White dwarfs are the burned-out cores of collapsed stars that, like dying embers,
... It is much hotter (25,000 K), but because of its small size its luminosity is low.
Jan 22, 2015 ... They can go supernova. Because many stars orbit others in relatively close
proximity, a white dwarf in a binary system can begin to cannibalise ...
Sirius A (a normal star twice as massive as the Sun) is the faint source to the ...
White dwarf stars are extreme objects that are roughly the same size as the Earth.
Mar 19, 2009 ... Dusty debris around an old white dwarf star (NASA) ... What we are left with is an
old Solar System, where little is left of the inner planets (it is ...
White dwarf stars are the corpses of stars; what happens once they've used up all
... If a star is large enough, it will even be able to begin helium burning in its ...
A white dwarf is a type of star that contains about as much matter as the Sun, but
packed into a size comparable to the Earth. The majority of white dwarfs are ...
Image: Z Camelopardalis, a binary star system with a white dwarf and its ... The
length of time it takes for a white dwarf to reach this state is calculated to be ...
Nov 11, 2012 ... White dwarfs are the hot, dense remnants of long dead stars. ... A single white
dwarf contains roughly the mass of our sun in a volume no bigger ...