Stars - After death

Andrew Conway

Stellar death

A star's "life" ends when there is no more nuclear fusion. After this is will end up in one of the following states, depending how much mass is left.

White dwarf

Supernova classification

Supernova light curves

Supernova light curves

Source: Lithopsian CC-BY SA 3.0

Properties

Type Peak abs. mag. Days to peak Days from peak to 10% luminosity
Ia −19 approx. 19 around 60
Ib/c (faint) around −15 15–25 unknown
Ib around −17 15–25 40–100
Ic around −16 15–25 40–100
Ic (bright) to −22 roughly 25 roughly 100
IIb around −17 around 20 around 100
II-L around −17 around 13 around 150
II-P (faint) around −14 roughly 15 unknown
II-P around −16 around 15 Plateau then around 50
IInd around −17 12–30+ 50–150
IIn (bright) to −22 above 50 above 100

Type I

Type II

Neutron stars

Pulsars

Quark stars?

Black holes

Accretion disks

Relativity - space-time

Hawking radiation