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Pushing a white dwarf into the solar system, to carry it away.
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The gravity of the white dwarf attracts the red giant's ejected material.
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The more massive the white dwarf is, the slower the pulses get.
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Nothing bright remains save a scattering of dim red and white dwarf stars.
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They can slowly burn down to the level of a white dwarf star.
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They can slowly burn down to the level of a white dwarf star.
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Its parent stars are a small, dense white dwarf star and a quickly rotating pulsar.
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A white dwarf star, bright but unwelcoming to life.
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A white dwarf star, Padronis had no companions in space, no planets or asteroids in orbit.
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At its centre was a blinding point of light-thewhite dwarf star that the sun had now become.
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Eventually, the Sun will discard its outer gaseous shield, leaving behind a white dwarf star with a white-hot stellar core.
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The team modeled what would happen if a common white dwarf star wandered near one of these medium-sized black holes.
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When it reaches the end of its lifetime, it will become a red giant before turning into a white dwarf star.
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Scientists now think the star used to be heavier, but a companion white dwarf star has been sucking mass off its sibling.
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Nothing bright remains save a scattering of dim red and white dwarf stars.
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Hubble also measured the brightness of exploding white dwarf stars -Type 1A supernovas.
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White dwarf stars slowly accumulated helium in their outer shells, causing them to go nova at wide intervals.
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One place to look proposed by Russian physicists is in the novas, or smaller explosions, produced when white dwarf stars belch out energy.
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One is that two dense white dwarf stars merge together, and blow up in a cataclysmic blast that leaves no trace of either star.