What is a catastrophic nova?

[ameriti$h]

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

 

[George Jones]

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?

 

[jonegil]

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

 

[ameriti$h]

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.