Lecture #17

Novae, in increasing energy

Dwarf, nova, supernova, hypernova

Mechanism for outbursts

Olber's Paradox

The night sky is dark

Production of neutrino at bounce

Core collapse

Heat up material

Produce electron-positron pairs

Pair annihilate & produce photons or neutrinos

Lecture #18

x-ray novae: 2 models

Book: disk instabilities

Lecture: black hole run-away

Fireball Mechanism

Extreme relativistic speeds

Expanding fireball engulfs material

Cools & releases radiation

Superluminal motion

Optical illusion: moving towards us

Rotating Black holes

Drags space-time with it

Winds up magnetic fields

May produce large gravity waves