Supernova
Expels matter - all heavy elements in the universe (in you!) are formed in supernovae
Remnant is a neutron star or black hole
Radiates more energy than an entire galaxy for a brief period (months):
- Famous supernovae:
- 0 -- The Christmas Star ??
- 1054 -- in Crab Nebula, Recorded in China, …..
- 1572 -- in large Magellanic Cloud, seen by Kepler
- Pulsars (Neutron Stars) observed now as remnants of the 1054 and 1572 Supernovae!
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- 1987 -- in Magellanic Cloud - remnants still observed