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VSNET campaign target list (2003 June 13)
*** VSNET campaign selected current target list 2003 June 13 ***
Object Class Position Type State Data Remark
======================================================================
GO Com 1 northern UGSU rare superoutburst 1 (1)
evening to rebrightening and
midnight fading
V803 Cen 1 southern HeDN superoutburst! 1 (2)
now oscillating!
V504 Cen 2 southern NL(VY) new target, mag 13 1 (3)
PU CMa 3 southern, UGSU post-superoutburst
early evening mag about 14-15 1 (4)
MV Lyr 3 northern NL(VY) extremely bright 1 (5)
QPOs present
VY Scl 3 southern, NL(VY) rare fading? 1 (6)
morning
======================================================================
* Class: 1 = primary target, 2 = secondary target, 3 = optional target
* Data: data request, 1 = VSNET core team, data will be received by
campaign report list. 2 = as above, in collaboration with
Hachisu-san.
(1) GO Com: rare superoutburst of the large-amplitude SU UMa-type.
(Following a precursor outburst). Magnitude about 14.0-14.5.
Rebrightening and fading, which may either signify the terminal
stage (too early?) of a superoutburst, or the start of some sort
of an oscillating state. Very unusual and complex period behavior.
[VSNET web page]
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/gocom0306.html
Possibly related WZ Sge page:
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/wzsge01.html
(2) V803 Cen: definite superoutburst, now entered a new stage of
damping oscillation to a more stable(?) plateau phase.
Superhumps are still visible, but with a smaller amplitude.
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/v803cen0306.html
(3) V504 Cen: bright overlooked VY Scl star, now at maximum (mag about 13).
Position: 14:12:49.11, -40:21:37.1 (J2000.0). Suitably placed after
PU CMa runs.
(4) PU CMa: data from Peter Nelson. Superhumps have almost disappeared.
Lowered priority. Snapshot observation to watch for a rebrightening
will be sufficient. V803 Cen/V504 Cen/(IM Nor, faint) are better-suited
targets now.
(5) MV Lyr: short-term variations with time scales of 10-30 min are
dominant. QPOs with P about 10-11 min sometimes become prominent
Excellent coverage from different observers. No clear superhump
signal is recorded up to now. We may also receive V449 Lyr observations
in the same field (19 07 35.68 +43 59 53.0, J2000.0; the GCVS position
is incorrect). Although V449 Lyr is not particularly a campaign target,
the reported data will be forwarded to vsnet-ecl members for further
analysis.
(6) VY Scl: rare faint state. Visible in the morning only.
Objects recently dropped from the list: OU Vir (faded), CR Boo (now
treated as a continous target), IM Nor (moonlight)
Please closely watch vsnet-alert and vsnet-outburst for other new
outbursts.
Web resource:
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/gocom0306.html
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/gocom.html [background info]
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/v803cen0306.html
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/pucma.html
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/ouvir.html
*** Notice ***
This list is "read-only", i.e. it is used only for announcement of
the target lists. Other information, as well as reports and discussions
on particular targets, should be directed to the appropriate VSNET campaign
sub-lists (e.g. vsnet-campaign-dn for dwarf novae).
Nightly time-series observations should be now directed to (rather than
private e-mails):
---------------------------------------------------
vsnet-campaign-report@ooruri.kusastro.kyoto-u.ac.jp
---------------------------------------------------
Reports sent to this address will be delivered to the VSNET campaign
local staffs, including Ishioka-san, Uemura-san and me, and are expected
to be more convenient than personal e-mails to separate addresses.
Regards,
Taichi Kato
VSNET admin
Return to the Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
