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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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