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What did you always wonder about #BlackHoles? Something that you always wanted to ask an astronomer working on them?
Collecting questions for a reason, maybe even answering them in the comments (or at a later point).
@vicgrinberg
I remember being a teenager and having a 'this is deep' idea after reading a Brian Greene book, that black holes are actually in some way covers for collapsed stars to repair themselves. Is there any merit to this idea? How would you describe the relationship between black holes and their progenitor stars?
@Franziska_Naja
@sonyablanck @Franziska_Naja uhm I honestly don't remember that idea? Sorry!
But I can tell a bit about the relationship: black holes have 3 properties - mass, spin and charge. Stellar mass black holes get all three mostly from their progenitor stars. So if we know how many black holes of e.g. different masses there are we can say something about what kind of stars made them, same if we look at black hole spin and try to derive how their progenitors rotated.