[vsnet-chat 457] Re: [vsnet-alert 1074] (fwd) V1974 Cyg Campaign (Retter)

[Taichi Kato <tkato>]

> 3. Simple calculations lead to the prediction that the permanent 
>    superhumps will cease when the nova magnitude reaches an upper limit 
>    of about 17.5-18.5 (it could happen before). We would like to check 
>    the evolution of the superhumps as the nova magnitude approaches 
>    this value, which corresponds to some critical value of the mass 
>    transfer rate M-dot.

   What does this "critical value" mean?  The lower limit of the surface
density (of the disk) which can maintain the hot state?  Will the nova
become an SU UMa-type dwarf nova afterwards?

Regards,
Taichi Kato

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp