[vsnet-chat 3926] Possible Nova in Pup

["Berto Monard" <Lagmonar@csir.co.za>]

Taichi, possibly the proper motion has a small radial component. Maybe the object moves straight at us? Could it be the millenium X-mas star? ;--)

 

The photometric data so far (bright state for over a month) exclude a typical CV outburst. Therefore I must agree that it is probably a nova but possibly with a progenitor (around magn 21?) hidden behind the 14 th magnitude star. This is a dense MW field.

 

In two months time we will know for sure.

 

Question No 1: Are there novae on record with a light gain of less than 6 magnitudes? Subluminous types?

Question No 2: Is it possible that the 'nova' had been much brighter before its discovery. Mr Haseda's photo precedes the actual discovery by nearly a month. What happened the month before then (Oct 2000)? The region must have been well above the horizon at that time. Bad weather?

 

 

Regards,

 

Berto

 

>>> Taichi Kato <tkato@kusastro.kyoto-u.ac.jp> 01/02/01 01:40PM >>>
Re: [vsnet-chat 3924] Possible Nova in Pup

> UGWZ type CV like RZ Leo perhaps?
> A not too far away system, with a small reddish secondary, low accretion
> rate, undetected so far but with the bluish colour of the hot WD...
>
> Is this not a nearby part of the Milky Way?

   If it were so, we should have selected it as the top-priority photometric
campaign target :-)

I don't think it a very nearby object, considering the undetectable
proper motion between the POSS and present epochs.

 

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