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[vsnet-campaign-news 84] AstroAlert: V1178 Sco = Nova Sco 2001
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Haseda's possible nova in Scorpius (V1178 Sco)
Now confirmed to be a nova with strong H-alpha emission line
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Mitsugu Fujii <aikow@po.harenet.ne.jp> reports the spectrum of V1178 Sco
taken on June 24.57 UT. Although the signal-to-noise ratio was rather low
because of the intervening clouds, a very strong emission lines of H-alpha
(FWHM about 1300 km/s), and weaker H-beta were confirmed.
The spectrum is available at:
http://vsnet1.harenet.ne.jp/~aikow/v1178_0624.gif
The object is indeed a nova (not a novalike object). The FWHM of the
emission line suggests a moderately slow to moderate speed class.
The object has received a permanet GCVS name of V1178 Sco.
Robert J. Modic reportst that the nova was at about 11.8 mag on 24.274 UT,
which is appreciably fainter than previous measurements. This may suggest
either that the nova has started fading, or that we are witnessing large-
amplitude oscillations which are rarely seen at the early stage of a
nova explosion.
The following dedicated VSNET page is available:
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Novae/nsco01.html
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We have been undertaking on photometric campaigns on several super-
outbursting dwarf novae and peculiar variable stars. News and call for
observations on these objects will be issued on our regular weekly
"News from VSNET" bulletins. Those who immediately need information
should make an access to the VSNET website, and click on VSNET campaign
list.
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VSNET (Variable Star Network) is an international variable star observing
network, covering various areas of novae, supernovae, cataclysmic variables
(CVs), X-ray transients, and other classical eruptive, pulsating, and
eclipsing variables. VSNET is one of invited contributing organizations
to the SkyPub AstroAlert system.
VSNET Home Page: http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/
CCD observations of such targets are a relatively easy task for a 20-40cm
telescope; simply take as many CCD frames (with exposure times 10-30 sec)
as possible, spanning several hours per night. The only requirements are
the weather and your patience! If you need more help on the observing
technique, please feel free to ask on the vsnet-campaign list.
We would sincerely appreciate volunteers who would join the VSNET
Collaboration team to study the wonders of these exotic variable stars.
To join the VSNET campaign collaborative list, send an e-mail to
vsnet-adm@kusastro.kyoto-u.ac.jp (VSNET administrator)
with a line "SUBSCRIBE vsnet-campaign." or your comment to join the
collaboration team.
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