From: LARRY KLAES (ljk4_at_msn.com)
Date: Mon Nov 03 2003 - 13:30:38 PST
----- Original Message -----
From: Makoto Uemura
Sent: Monday, November 03, 2003 1:45 PM
To: AstroAlert
Cc: vsnet-adm_at_ooruri.kusastro.kyoto-u.ac.jp
Subject: AstroAlert: News from VSNET
==================================================================
This Is SKY & TELESCOPE's AstroAlert for Variable Stars
==================================================================
*** News from VSNET ***
Z Cam shows a clear indication of damping oscillations.
For more detail information about these objects,
see below, "VSNET Weekly Campaign Summary" of the last week.
---------------------------------------------------------------------------
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://www.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_at_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
----------------------------------------------------------------------------
The following was issued on November 3, 2003, as VSNET campaign
circulation 1420
[Note a large part of detailed information is posted to vsnet-campaign
sub-lists].
VSNET Weekly Campaign Summary
*** Last week news ***
(new targets)
SN 2003jf (RA = 17h53m33s.45, Dec = +64d10'12".1)
SN 2003jf is hosted by MCG +11-22-9, a spiral galaxy.
The expected maximum for typical SN Ia is mag about 17.5
(vsnet-campaign-sn 718). The UCB team revealed that it is a young
type II SN (vsnet-campaign-sn 720).
V823 Cyg (RA = 20h01m49s.28, Dec = +36d07'24".2)
An outburst of 15.1mag was reported by D. Taylor on October 27
(vsnet-campaign-dn 4024). M. Uemura reported it was fainter than
17mag on October 29 (vsnet-campaign-dn 4026).
SN 2003jg (RA = 09h45m37s.91, Dec = -31d11'21".0)
SN 2003jg is hosted by NGC 2997, a nearby spiral galaxy. It is
superimposed on the central region. The expected maximum for
typical unreddened SN Ia is mag about 12.8, though it is probably
highly absorbed or/and (intrinsically subluminous) core-collapse
event (vsnet-campaign-sn 721).
SN 2003jh (RA = 04h16m37s.30, Dec = -12d23'32".9)
SN 2003jh is hosted by MCG -02-11-30, a barred-spiral galaxy.
The expected maximum for typical SN Ia is mag about 17.2
(vsnet-campaign-sn 722).
(continuous targets)
V5113 Sgr (RA = 18h10m10s.42, Dec = -27d45'35".2)
D. West estimated: t(outburst) = 15 Sep 2003; t(max V mag) = 18
Sep 03, V=8.8; t2 (day reached V=10.8) = 24 Oct 2003, using
observations reported to VSNET and AAVSO (vsnet-campaign-nova 1550).
Z Cam (RA = 08h25m13s.2, Dec = +73d06'39")
Z Cam at present shows a clear indication of damping
oscillations. This feature was also seen when the object entered a
standstill in 2001 (vsnet-campaign-dn 4025, 4027).
SN 2002jd (RA = 23h21m03s.38, Dec = -04d53'45".5)
The CfA team has revealed that SN 2003jd is a peculiar type Ic SN,
resembling SN 1998bw near maximum (though not identical)
(vsnet-campaign-sn 719).
SN 2002je (RA = 08h49m22s.24, Dec = +36d42'56".6 )
The UCB team revealed that it is a type II (probably IIn) SN
(vsnet-campaign-sn 720).
MX0656-072 (RA = 06h58m26s.9, Dec = -07d15'47")
T. Kato reported that the suggested counterpart of MX0656-072
(ATEL #202) at 065817.23 -071234.8 (2000.0) is rather highly
variable in the ASAS-3 public light curve. The object varies
between 11.4 and 12.1 (V). The object is not particularly bright at
recent times (vsnet-campaign-xray 277).
V475 Sct (RA = 18h49m37s.60, Dec = -09d33'50".85)
D. West proposed a distance of 2.03 +/- 0.19 kpc of this nova
using its t2 and some proposed method to calculate the extinction
(vsnet-campaign-nova 1558). D. Starkey reported that the Ha peak
was much diminished in the spectrum taken on Oct. 31. Also, the O-I
peaks at 6300 and 6363 angstroms were much increased
(vsnet-campaign-nova 1559, 1560, 1561). The object has shown hints
of oscillations (vsnet-campaign-nova 1549, 1551, 1552, 1553, 1554,
1555).
*** Future schedule ***
The 5th Microquasar Workshop
June 7 to June 13, 2004, at Tsinghua University, Beijing, China
http://jet.uah.edu/microquasar
[vsnet-campaign-xray 276]
Call for Proposals
for Cycle 1 of the Swift Guest Investigator Program
Notices of Intent due: October 6, 2003
Proposal due date: December 1, 2003
[vsnet-campaign-grb 39]
ASTRONOMICAL POLARIMETRY
CURRENT STATUS AND FUTURE DIRECTIONS
15-19 March 2004, Waikoloa Beach Marriott, Waikoloa, Hawaii
http://www.jach.hawaii.edu/JACpublic/JAC/pol2004
[vsnet-campaign-polar 35]
IAU Symposium No. 222 - BHSIGN Conference
The Interplay among Black Holes, Stars and ISM in Galactic Nuclei
March 1-5, 2004, Gramado, Brasil
http://bhsign.if.ufrgs.br/
[vsnet-campaign-agn 5]
WEBT campaign on AO 0235+16
Campaign with VLBA and XMM-Newton conducted by Claudia M. Raiteri
from September 2003 to January-February 2004
see [vsnet-campaign-blazar 301, 305, 313]
X-RAY AND RADIO CONNECTIONS
Santa Fe, New Mexico, USA
3 - 6 February 2004
http://www.aoc.nrao.edu/events/xraydio/
[vsnet-campaign-xray 258]
X-Ray Timing 2003: Rossi and Beyond
November 3-5, 2003
Harvard-Smithsonian Center for Astrophysics
http://hea-www.harvard.edu/xrt2003/
[vsnet-campaign-xray 242]
AR UMa and AM Her campaign with the HST
TOO program conducted by S. Saar and F. Ringwald
see [vsnet-campaign-polar 24]
QS Tel: Call for observations
TOO program with the Chandra conducted by C. Mauche
until the end of 2004
see [vsnet-campaign-polar 28]
Multiwavelength AGN Surveys
a "Guillermo Haro" Astrophysics Conference
organized by INAOE
December 8-12, 2003
Cozumel, Mexico
http://www.inaoep.mx/~agn2003/
[vsnet-campaign-agn 4]
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_at_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]
*** General information ***
V475 Sct
New deeper chart made by S. Otero:
http://ar.geocities.com/varsao/Carta_V475_Sct_tel2.htm
[vsnet-campaign-nova 1556]
New sequence Compiled by Bjorn H. Granslo, see
[vsnet-campaign-nova 1557]
Spectrum on Oct. 31 taken by D. Starkey:
http://www.starkey.ws/FTP%20Page/V475%20Sct%20Spectra%20Oct%2031%202003%20UT.jpg
[vsnet-campaign-nova 1559]
(This summary can be cited.)
Regards,
Makoto Uemura
==================================================================
AstroAlert is a free service of SKY & TELESCOPE, the Essential
Magazine of Astronomy (http://SkyandTelescope.com/). This e-mail
was sent to AstroAlert subscribers. If you feel you received it
in error, or to unsubscribe from AstroAlert, please send a plain-
text e-mail to majordomo_at_SkyandTelescope.com with the following
line -- and nothing else -- in the body of the message:
unsubscribe variable-star e-mail_at_address.com
replacing "e-mail_at_address.com" with your actual e-mail address.
==================================================================
This archive was generated by hypermail 2.1.6 : Mon Nov 03 2003 - 13:55:47 PST
