Assertion: black hole | /r/HasAspect | a companion star
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Source sentences:
text: The ones we see have extraordinary spiraling gas working its way down to the center of the abyss, and you see those when it’s a black hole that has a companion star that’s getting flayed by the source of gravity, and typically, when the companion star swells up to become a red giant and overfills its Roche lobe, which is an envelope around a star beyond which if any of its material drifts past that envelope, its susceptible to falling somewhere else within that orbiting system.