[vsnet-chat 2539] Re: FW: nova oscillation

[Alon Retter <ar@astro.keele.ac.uk>]

Dear vsneters,

I would like to remind all that the light curve of Nova Mus 1998 
also showed these oscillations. A few explanations to this phenomenon
have been suggested so far. I believe that the most promising is 
the one invoking dust particles that move in and out from our line 
of sight to the nova. This suggestion can be easily tested by taking
infrared spectra during this transition phase. It is indeed in plan
for this particular nova.

Let me use this occasion to thank all amateur observers who observed 
the nova, and allowed us, the professionals to build a very detailed 
light curve of the object.

Regards,
Alon
-------------------------------------------------------------------------
   Dr. Alon Retter         Tl. (work)     +44-(0)1782-58-3493  
   Physics Dept.           Fax  (work)     +44-(0)1782-711093 
   Keele University        -----------------------------------
   Staffordshire           'As a scientist I don't believe myself, so
   ST5 5BG, U.K.            why should I believe you?' (A.R. 1965-2085)
-------------------------------------------------------------------------
On Sun, 9 Jan 2000, Taichi Kato wrote:

> Re: [vsnet-chat 2516] FW: nova oscillation
> 
> > Are these on long time scake (~days/weeks) or is it due to fast light =
> > changes?
> 
>     The present detection of oscillations refers to quasi-periodic modulation
> with an amplitude of 0.5-0.7 mag and a period of 6-8 days, superimposed
> on the smooth decline of a fast nova.  Similar oscillations were best
> observed in GK Per and V603 Aql (see the light curves in some textbook of
> varaible stars).
> 
>     Our knowledge in the origin of oscillations is still poor.
> 
> Regards,
> Taichi Kato
> 
>

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