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Taalnazi t1_j2dq8ws wrote

Reply to comment by rootofallworlds in What is the timeline of star death? by jfgallay

Can nothing be fused beyond iron, even if only temporarily stable? If so, would a quasi-star be able to put this off, due to its sheer mass? Or something else?

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rootofallworlds t1_j2drq9r wrote

Iron can fuse but the fusion absorbs energy instead of releasing it. So it only accelerates the collapse of the core.

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Taalnazi t1_j2duhrm wrote

Thanks. Hmm... and so far, no star has been discovered yet in their carbon-burning or more advanced-burning phase? Or do carbon stars fall under this?

There are supernovas we observe, sure, but do we know when we look at the very last stages before it? Can we detect the 600-or-less-years phases?

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