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*** News from VSNET ***
A. Takao discovered a nova in Ophiucus.
For more detail information about these objects,
see below, "VSNET Weekly Campaign Summary" of the last week.
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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.
The "News from VSNET", mainly focusing on recent remarkable activities of
CVs and related systems, is issued on a weekly basis, except on occasions
of extremely urgent or transient events.
Please refer to the VSNET Home Page for more details of events and
objects listed.
VSNET Home Page: http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/
VSNET provides a number of mailing lists, on which various news and topics
are discussed. Subscriptions to the VSNET mailing lists are free of charge;
please refer to the instruction on the above page if a reader needs more
information of the list structure.
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."
(VSNET campaign members are strongly recommended to subscribe to vsnet-alert
at the same time).
Regards,
Taichi Kato
On behalf of the VSNET administrator team
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The following was issued on July 21, 2003, as VSNET campaign
circulation 1405
[Note a large part of detailed information is posted to vsnet-campaign
sub-lists].
VSNET Weekly Campaign Summary
*** Last week news ***
(new targets)
Nova in Oph 2003 (R.A. = 17h19m14s.086, Dec = -27d22'35".21)
A. Takao reported the detection of a likely new object on his two
unfiltered CCD images taken on July 10 (11.4C mag) and 16 (11.2C
mag). According to ASAS-3 public data, this object was recorded to
brighten on June 15. After maintaining magnitudes of V=11.0-11.5,
the object apparently reached a maximum of V=10.6 on June 26
(vsnet-campaign-nova 1327, 1324). V. Tabur reported that it can be
detected on images after 2003 March (vsnet-campaign-nova 1325),
which implies that it is a slow nova (vsnet-campaign-nova 1326).
G. Bolt performed time-series photometry, which showed 0.1-mag slow
modulations (vsnet-campaign-nova 1335). W. Liller performed
spectroscopy on July 18, and reported the presence of strong H_alpha
emission, which means that it is a genuine nova (vsnet-campaign-nova
1345). C. Buil also reported a strong H_alpha emission in the
spectrum taken on July 19 (vsnet-campaign-nova 1346, 1348). The
object is still bright (vsnet-campaign-nova 1341, 1349, 1328, 1334,
1329, 1330, 1331, 1333, 1336, 1338, 1340, 1343, 1342, 1344, 1347).
RU Peg (RA = 22h14m02s.58, Dec = +12d42'11".4)
The object experienced a very bright outburst reaching 9th mag
(vsnet-campaign-dn 3867).
SS UMi (RA = 15h51m22s.4, Dec = +71d45'11".1)
A possible superoutburst was reported by G. Poyner on July 15
(vsnet-campaign-dn 3869).
V380 Oph (RA = 17h50m13s.6, Dec = +06d05'29")
The NL-type star V380 Oph is reported brighter than usual
(~14.4mag). Probably worth following (vsnet-campaign-nl 133).
(continuous targets)
SN 2003gm (RA = 13h52m51s.72, Dec = -01d06'39".2)
The European Supernova Collaboation team reported in CBET No. 30
that the spectrum of SN 2003gm taken on Jul. 16.87 UT resembles to
that of dim SNe II, or luminous blue variables (vsnet-campaign-sn 658).
RZ Sge (RA = 20h03m18s.49, Dec = +17d02'52".6)
The superoutburst is still ongoing (vsnet-campaign-dn 3868, 3873).
AO 0235+16 (RA = 02h38m39s.0, Dec = 16d37'05")
J. Webb reported that the object was V = 17.4, R = 16.8, and I =
16.0 on July 10, which indicates that the object is now possibly in
a brightening phase (vsnet-campaign-blazar 302).
*** Future schedule ***
AR UMa and AM Her campaign with the HST
TOO program conducted by S. Saar and F. Ringwald
see [vsnet-campaign-polar 24]
WEBT Campaign for AO 0235+16 with XMM-Newton
January-February 2004
please contact to Claudia M. Raiteri,
see [vsnet-campaign-blazar 301]
Multiwavelength AGN Surveys
a "Guillermo Haro" Astrophysics Conference
organized by INAOE
December 8-12, 2003
Cozumel, Mexico
http://vsnet.inaoep.mx/~agn2003/
[vsnet-campaign-agn 4]
IM Nor Campaign
by I. Hachisu (University of Tokyo) and the VSNET team
For more information, see [vsnet-campaign-nova 1241]
GRB Mini-Symposium in JENAM2003
For more information, http://vsnet.konkoly.hu/jenam03/
[vsnet-campaign-grb 31]
IAU JD17 "ATOMIC DATA FOR X-RAY ASTRONOMY"
ON JULY 22-23, 2003 at the XXVth IAU GENERAL ASSEMBLY
SYDNEY, AUSTRALIA, JULY 13-26, 2003
for more information:
http://vsnet.astronomy.ohio-state.edu/~pradhan/Iau/iau.html
[vsnet-campaign-xray 227]
"X-ray and Radio Emission of Young Stars"
July 28 - 29, 2003, Rikkyo University, Tokyo, Japan
for more information , please contact to kitamoto@rikkyo.ne.jp
[vsnet-campaign-xray 218]
Conference: THE INTERPLAY AMONG BLACK HOLES, STARS AND ISM IN
GALACTIC NUCLEI
in Gramado, south of Brasil, March 1-5, 2004
for more information, please contact to BHSIGN@if.ufrgs.br
[vsnet-campaign-agn 3]
eta Car: The next "shell event"/X-ray eclipse
M. Corcoran reported the event will occur this summer.
Coordinated ground-based observations of eta car along with the
X-ray observations would be really important.
For more information:
Latest X-ray light curve:
http://lheawww.gsfc.nasa.gov/users/corcoran/eta_car/etacar_rxte_lightcurve/
[vsnet-campaign-sdor 23, 24,
25, 26, 28, 29, 46]
[vsnet-campaign-xray 172]
Light curve provided by S. Otero:
http://ar.geocities.com/varsao/Curva_Eta_Carinae.htm
[vsnet-campaign-sdor 22, 32, 33]
The 2003 Gamma Ray Burst conference
Hosted by Los Alamos,
in Santa Fe, New Mexico (USA), between September 8 and 12, 2003
http://grb2003.lanl.gov/
[vsnet-campaign-grb 13]
*** General information ***
Nova in Oph in 2003
VSNET page:
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Novae/noph03.html
[vsnet-campaign-nova 1332]
Chart presented by S. Otero:
http://ar.geocities.com/varsao/Carta_V2573_Oph.htm
[vsnet-campaign-nova 1337]
Spectrum taken by C. Buil:
http://astrosurf.com/buil/us/noph2/noph2.htm
[vsnet-campaign-nova 1346, 1348]
V4745 Sgr
Spectrum taken by C. Buil:
http://astrosurf.com/buil/us/v4745sgr/v4745sgr.htm
[vsnet-campaign-nova 1348]
Software problem (AIP4win)
See, [vsnet-campaign-ccd-discussion 88, 89, 90, 91, 96
V1363 Cyg
Light curve observed by N. James (in G. Poyner's page):
http://vsnet.garypoyner.pwp.blueyonder.co.uk/v1363cyg_ndj.jpg
[vsnet-campaign-dn 3870,3871,3872]
(This summary can be cited.)
Regards,
Makoto Uemura
Return to the Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
