[vsnet-alert 11428] Re: V2672 Oph rebrightening

[Berto Monard]

There is an interesting development. This nova has started to behave like a DN during superoutburst.
Last nights observations showed oscillations similar to superhumps but possibly with changing period.
The mean magnitude was 14.4CR, amplitude 0.15 and quasi period around 0.035d .


Berto Monard / CBA Pretoria

>>> Taichi Kato <tkato at kusastro.kyoto-u.ac.jp> 24/08/2009 06:33 >>>
> OPHV2672       20090823.47242 13.96Rc  Mhh.VSOLJ
> OPHV2672       20090823.47267 13.34Ic  Mhh.VSOLJ
> OPHV2672       20090823.47385 16.50V   Mhh.VSOLJ

   Appears to be fading further.  The V-Ic color seems to have increased
slightly (although passbands may be significantly different between
observers).

   The rebfirhtening phenomenon during the early stage might resemble
that of V2491 Cyg (another fast nova claimed to be similar to recurrent
novae).  Or are we observing some kind of nova oscillations?