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Astro Again - Notes Shockwave moves outward through outer...

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Notes 11-10-09 Shockwave moves outward through outer parts of star -shreds it/ blow it to bits -shock wave moves at about 50 degress celcius Consequences Blast yield- comparable to output during main sequence Eg 25 Mo- 10^ 7 years = 1000 Lo Peak lumining 5 x 10^8 Lo ( a day or so) Remaining 0 degress – 20 degrees neutron star or black hole II type II or “Core Collapses Leads to supernovae/ spectroscopy of explosion III 80% up to 100% matter Blasted off into space. IV Superabundance energy --Lots of excess energy and lots of High energy matter and particles Create elements heavier than Iron Source of all elements heavier than Iron V blast spreads all of this material through space “sseds: the interstellar medium force of explosion can kick start nearby star formation Population I Star metal rich It is a star that has been seeded by either a) a supernova explosion all elements B) a planetary nebula C and N and O Other ways for stars to die…. Type Ia supernova (Death by vapirism/ over eatubg 50 % in binart mulitiple star system One star in a binary white dwarf (WD) Other main sequence –evolves to red giant
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