[vsnet-chat 2827] to oscillations

["A.E. Rosenbush" <mijush@mao.kiev.ua>]

Dear Dr. Lange,

you ask well question on the V1494 Aql' oscillations. 
Yes, it is the common property of some of novae. 
But the V1494 Aql case is unique as there is two successive periods
(namely two). 
It is possible its cause is connected with the ejected nova envelope. 
For example, the DQ Her type novae have the dust condensation event 
in this phase.  But here is other cause. 

In any case the discovery and monitoring 
of such ocsillations is very necessary. 

Sincerely yours, 
A.Rosenbush 

-------------------------------------------------------------------------
On Sat, 1 Apr 2000, Thorsten Lange wrote:

> Hello,
> I have a question about V1494 Aql:
> The nova showed a period of ~8 day from 1999/12/19 to 2000/01/07 (~1mag)
> and then a period of ~15 days (~1-1.5mag).
> What is the reason for both periods?
>
> Thorsten Lange
>
> --
> Thorsten Lange
> EMail tl@thola.de
> http://thola.de/
>


   *=============================================*
   |   Dr. Alexander E.Rosenbush                 |
   |   Main Astronomical Observatory             |
   |   National Academy of Sciences of Ukraine   |
   |   Golosiiv                                  |
   |   Kyiv-127, 03680                           |
   |   Ukraine                                   |
   |.............................................|
   |   e-mail: mijush@mao.kiev.ua                |
   *=============================================*

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