# What would happen if a star went supernova inside a supermassive black hole? [closed]

A black hole swallows a star.

The star remains intact.

Then goes supernova.

What would happen to the star?

Could we detect this event?

• How would the star remain intact? I don't think this can happen. Therefore the whole scenario is a bit constructed. Feb 22 '19 at 12:38
• The largest supermassive black holes have a Schwarzchild radius around $6\times 10^{13}$ meters. Tidal forces near that radius would be roughly $10^{-12} g/m$ or a few milli g across the diameter of a not too large star. So it is definitely possible for a star to fall into such a black hole without being immediately destroyed. Feb 22 '19 at 12:49
• I'm voting to close this question as off-topic because the premise is fatally flawed - the situation could never occur. Feb 22 '19 at 16:35
• @CarlWitthoft (also Max0815) please explain what makes it impossible. As Steve Linton notes, the event horizon of a large SMBH can easily be 200 AU in radius, and there are a number of plausible situations where a star, white dwarf or neutron star could go supernova at that distance. Feb 23 '19 at 11:38
• @Chappo right yeah the roche limit of supermassive black hole is inside event horizon. Feb 24 '19 at 16:01