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[vsnet-campaign-news 140] First-ever outburst of 1RXP J113123+4322.5
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First-ever outburst of 1RXP J113123+4322.5
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Pavol A. Dubovsky (MEDUZA group, Slovakia) reports that the
ROSAT-selected cataclysmic variable 1RXP J113123+4322.5 is undergoing
the first-ever secure outburst (magnitude 13.5). The outburst has been
confirmed by Ondrej Pejcha with 40cm Brno telescope.
This observation confirms the dwarf nova-type nature of this object.
Since little is known about this new CV, time-resolved photometry is
most urgently requested.
The object is located at:
11h 31m 23s, +43o 22' 37" (J2000.0)
Accurate astrometry based on outburst CCD images is also highly desired.
Further information will be reported on the VSNET dwarf nova campaign
list (vsnet-campaign-dn).
YYYYMMDD(UT) mag observer
20011114.190 <145 (Timo Kinnunen)
20011215.000 <145 (Timo Kinnunen)
20011221.161 <147 (Pavol A. Dubovsky)
20020110.356 <142 (Mike Simonsen)
20020112.364 <142 (Mike Simonsen)
20020119.000 <144 (Pavol A. Dubovsky)
20020122.347 <142 (Mike Simonsen)
20020126.374 <142 (Mike Simonsen)
20020203.926 <146 (Pavol A. Dubovsky)
20020204.865 <146 (Pavol A. Dubovsky)
20020205.885 <146 (Pavol A. Dubovsky)
20020208.301 <146 (Mike Simonsen)
20020215.069 <146 (Pavol A. Dubovsky)
20020216.014 <146 (Pavol A. Dubovsky)
20020216.901 <148 (Pavol A. Dubovsky)
20020218.269 <146 (Mike Simonsen)
20020223.318 <146 (Mike Simonsen)
20020305.988 135 (Pavol A. Dubovsky)
Regards,
Taichi Kato
VSNET Collaboration team
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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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