Catastrophic Nova: Definition & Explanation

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ameriti$h
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What is catastrophic nova?Why have cosmologist chosen this characteristic for nova?
 

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ameriti$h said:
What is catastrophic nova?Why have cosmologist chosen this characteristic for nova?

I'm not sure what you mean. Do you mean catastrophic supernovae and their use in cosmology?
 
you prob'ly mean catastrophic supernovae...if you do, a catastrophic supernova is a very violent explosion of a star that will end up in a black hole or in a neutron star
 
the physics of nova eruption

Thanks very much.
Can i ask another question about physics of nova eruption, (I know a few things about converting homogeneous gas to perfect gas but not completely)
Could anyone explain the physics of vova eruption?
thanks in advance.