ASTRON 2B03 Lecture Notes - Neutrino, Centaurus A, Astrophysical Jet
25 Sep 2013
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Document Summary
Structure in the universe output of simulations. Dark matter dominates mass, and therefore dominates how structure grows. Dark matter + gravity = structure: galaxies follow dark matter. Structure network of nodes, filaments, looks like a big web. Stellar mass biggest stars that form, and end of their lives will become a black hole after they explode in supernovae. Supermassive - weigh a million (up to a billion) x the mass of the sun. live in the centre of galaxies. If you want a black hole, you have to squeeze earth to the size of a marble. How do we make big ones: 1) start w/ stellar mass. Must happen really fast, and must be a whole lot of them early history: you would expect to see intermediate, we dont though. Hard to detect yes, but we should have seen by now: still an outstanding big question. Only biggest stars that become black holes not that many.
