[vsnet-alert 11858] Re: V407 Cyg outburst

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Fri Mar 12 10:00:09 JST 2010

>  V407 Cyg is undergoing a bright (V=7.9) outburst! 
> Follow-up observations are encouraged.

   Indeed surprising!  Although I expected that the object would be
bright in the visual, this redness is unexpected.

   The object may be undergoing a nova outburst (highly reddened?)
or may be undergoing a "red-nova" outburst resembling V838 Mon etc.
Urgent spectroscopy is encouraged!

   Could someone propose a Swift TOO observation?

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