In this model, gas flows from the large red giant companion star into a disk and then onto the White Dwarf.

这个模型是指气体从大型红巨星伴星流到白矮星的吸积盘上然后被吸进白矮星中。

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Every 20 years or so the red giant star dumps enough hydrogen gas onto its companion White Dwarf star to set off a brilliant thermonuclear explosion on the White Dwarf's surface.

大约每过20年红巨星向它的白矮伴星上输出足够的氢气在白矮星表面产生一次耀眼的热核爆炸。

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Now, an international team of astronomers has trained the Fermi space-based gamma ray telescope on V407 Cygni, a "binary" system comprising a white dwarf star and a red giant companion, 9, 000 light-years away.

BBC: Gamma rays from nova explosion surprise astronomers

Standard Type Ia supernovae are binary systems in which a white dwarf star draws so much matter from its companion (often a red giant) that it undergoes a kind of energy overload and detonates.

FORBES: When A Supernova ... Fizzles