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Re: [vsnet-campaign-v4641sgr 168] Re: V4641 Sgr, recent data
> > # I wonder what is the reason for a 1-mag difference between visual and
> > # CCV V-band observations.
> >
>
> I am guessing the difference is due to emission lines. This is similar to
> what is observed in novae during the nebular phase.
Less likely. V4641 Sgr lacks strong emission lines in quiescence,
which was the reason why the object was disregarded by most of CV observers.
The spectrum strongly resembles that of an A0 star, indicating that
there is little chance for an error arising from transformation/response
function problems.
Regards,
Taichi Kato
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vsnet-adm@kusastro.kyoto-u.ac.jp
