Re: [vsnet-chat 2238] Re: (fwd) Nova Paper research > As you know, the standard model for a classical nova is a white > dwarf and a red dwarf. I believe that this model has been confirmed > by the numerous observations. First, we are speaking of "novae". Classical novae and novae may not be necessarily the same category. Yes, many well-observed novae fall in this category. But there is no guarantee all of novae receiving "nova" classification satisfy this binary configuration. Then why they are justified as novae in the narrower sense? > Anyway, recurrent novae are not 'classical' novae. I think most astronomers believe all novae are essentially recurrent. The main distinction is in the recurrence time, not in the underlying physical mechanism. Regards, Taichi Kato