[vsnet-chat 2249] Re: (fwd) Nova Paper research

[Alon Retter <ar@astro.keele.ac.uk>]

>    When if some recent nova is revealed to have exploded in the very past
> (e.g. from ancient records), should it be dropped from the classical novae
> list?  It severely depends on the recording ability and detection limit
> in the past, and sounds only too artificial.  It seems to me more plausible
> novae, even when multiple explosions are revealed, remain in the category
> of classical novae.
> 
Individual cases should be checked accordingly. However, since the
recurrence times of recurrent novae are a few decades, while those
of classical novae (according to the models) are ~10^4 - 10^6 years,
there is no smooth behaviour. Anyway, in recurrent novae the secondaries
are believed to be giant stars, unlike the red dwarfs in classical novae.
So, there is a clear difference.

Don't you accept the classification of recurrent novae as a unique 
subclass of novae, when most novae are classical novae?

Regards,
Alon Retter

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