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What are symbiotic novae?

  1. Aug 24, 2007 #1
    what mechanism make them to re-explode? what are symbiotic novae ?
  2. jcsd
  3. Aug 25, 2007 #2
    White Dwarfs can go nova by accreting hydrogen from a neighbouring star; the gas is compressed by the extreme gravity of the white dwarf causing a thermonuclear runaway explosion on the surface (temperatures up to 20 million k). During a nova explosion, the energy released can equal what the sun emits over 10,000 years. The mass ejected only makes up about 1/10,000th of the white dwarfs mass, which means the star stays intact and can return to its prenova state. The process can be repeated every few thousand years.
  4. Aug 25, 2007 #3
    except wiki where i can find a nice article on nova?
  5. Aug 26, 2007 #4
  6. Aug 26, 2007 #5
    thanks steve!
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