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August 31, 2015

Homework Help: physics

Posted by Misty on Friday, April 29, 2011 at 11:02pm.

Distinguish between properties of the two major types of supernovae: massive star supernovae and white dwarfs.
All supernovae represent the explosions of stars, but current understanding suggests there are two basic types of supernovae: one that occurs when a massive star reaches the end of its life, and the other that occurs when a white dwarf star explodes because its mass has exceeded the white dwarf limit (also called the Chandrasekhar limit) of 1.4 solar masses.

Match the items below with the correct type of supernova.

1. Star explodes completely, leaving no compact object behind.
2. Can only occur in a galaxy with ongoing star formation.
3. Black hole or neutron star left behind.
4. Can only occur in a binary system.
5. Can occur in a very old star cluster.
6. Spectra always lack strong hydrogen lines.
7. Has a brighter peak luminosity.

What I think...
White dwarf supernova:
1
4
5

Massive star supernovae:
2
3
6
7

But, I got it wrong. Can someone please help me? I don't know which ones are wrong.

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