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[vsnet-alert 7777] V1494 Aql: eclipsing nova



V1494 Aql: eclipsing nova

Dear Colleagues,

   Based on recent reports by Donn Starkey and Tom Krajci to VSNET,
V1494 Aql (Nova Aql 1999 No. 2) is comfirmed to be an eclipsing nova.
The current depths of eclipses are about 0.4 mag, flat-bottomed and have
typical durations of 30 min.  The orbital period is 0.1346 d.  This period
is close to that (0.1384 d) of another eclipsing fast nova V1668 Cyg
(see e.g. Kaluzny 1990, MNRAS 245, 547), and a non-eclipsing fast nova
V603 Aql (P=0.1382 d).  The eclipse signal can definitely be tracked to
the 2002 observations reported to VSNET, and was possible present in 2001
observations contemporaneously made with Chandra (vsnet-alert 6905).
The report of linear intrinsic polarization during outburst (Kawabata
et al. 2001 ApJ 552, 782) would be naturally explained by the effect of
a high inclination.

Regards,
Taichi Kato
VSNET Collaboration team


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