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1991ApJS...76.

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Page 1: Supernovae - Iowa State Universitygarage.physics.iastate.edu/astro250/SPRING10/Supernovae.pdf5.6.40*106 7x104 — 6 months 6.0x 106,1.7x 109 xlos.2x1010 9.5x years 9.4*102. .9x108

1991ApJS...76...55I

Page 2: Supernovae - Iowa State Universitygarage.physics.iastate.edu/astro250/SPRING10/Supernovae.pdf5.6.40*106 7x104 — 6 months 6.0x 106,1.7x 109 xlos.2x1010 9.5x years 9.4*102. .9x108

5

Advanced Burning StagesEach successive

stage is less efficient

So each stage takes a shorter time to

complete

7

SN 1987A in the Large Magellanic Cloud

Supernova in M71

Page 3: Supernovae - Iowa State Universitygarage.physics.iastate.edu/astro250/SPRING10/Supernovae.pdf5.6.40*106 7x104 — 6 months 6.0x 106,1.7x 109 xlos.2x1010 9.5x years 9.4*102. .9x108

9

computer model of the first few moments of a Supernova (i.e. Bethe et al, 1990)

10

Cassiopeia A(x-ray)

Cassiopeia A (optical)

The Crab Nebula(optical, Fick)

The Veil(Fick)

Astro 150 Spring 2005: Lecture 17 page 11 Astro 150 Spring 2005: Lecture 17 page 12