'Type ii supernova' diaporamas de présentation

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???????. ????????? ???. Supernovae are vast explosions in which a whole star is blown up. They are mostly seen in distant galaxies as `new' stars appearing close to the galaxy of which they are members. They are extremely bright, rivalling, for a few

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Lecture Slides CHAPTER 13: Evolution of High-Mass Stars

Lecture Slides CHAPTER 13: Evolution of High-Mass Stars. Understanding Our Universe S ECOND E DITION Stacy Palen, Laura Kay, Brad Smith, and George Blumenthal. Prepared by Lisa M. Will, San Diego City College. Evolution of High-Mass Stars.

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SUPERNOVAE

SUPERNOVAE. The Brightest Lights in the Universe By Michael Davis. So, exactly what is a supernova anyway?

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Chapter 17: Evolution of High-Mass Stars

Chapter 17: Evolution of High-Mass Stars. Massive stars have more hydrogen to start with but they burn it at a prodigious rate. The overall reaction is still . There are 3 gamma ray photons instead of two and it consumes hydrogen much faster but requires higher temperatures.

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The Death of High Mass Stars: 8 Solar Masses and up.

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Supernova

Supernova. At 15 MK carbon can fuse with four hydrogen nuclei to create more helium. At 100 MK carbon can directly fuse with helium to form oxygen. Both processes release photons. Carbon Fusion. photons and neutrinos. carbon-12. carbon-12. oxygen-16.

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