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(from vsnet-alert messages)
(J. W. Robertson, 1994 Dec. 14)
> Date: Tue, 13 Dec 1994 05:16:49 -0500 > cbs_31 ! Object name > 13.43 -3.87 -4.08 ! New Magnitude, Diff(new-mode, new-previous) > 17.29 .33 .98 ! Mode, Sigma, Test (3*sigma) > 18.28 16.31 ! Trigger Test Range ( Mode +- 3*Sigma) > 2449699.92460 10.99248 ! Observation JD (Helio), NewJD - PreviousJD > 10:11:25.44 13-Dec-1994 ! Universal Time (Helio) > 05:11:25.44 13-Dec-1994 ! Eastern Standard Time (Helio) > 05:15:53 13-Dec-94 ! EST Trigger Time (Earth) > > DATA from Indiana University RoboScope > Please see documentation for details > > Honeycutt & Turner 1992, in ROBOTIC > TELESCOPES IN THE 1990s, ed. A. > Filippenko, (San Francisco, ASP) p.77 > > Honeycutt 1992, PASP 104, 435 > > Honeycutt et al 1989, in REMOTE ACCESS > AUTOMATIC TELESCOPES, ed. D.S. Hayes and > R.M. Genet, (Mesa, Fairborn Press) > > OR see our homepage on the WorldWideWeb > http://www.astro.indiana.edu/apt/ >
(1994 Dec. 15)
As you may seen from the Roboscope trigger, pooly studied CV CBS 31 = SX LMi is caught in outburst probably for the first time in the reserch history of this object. Observations are strongly recommended because this star is suspected to be a 'below the period gap' CV.
Regards
Taichi Kato
(1994 Dec. 15)
radial velocity and photometric studies of CBS 31 (unpublished) show
the CV to have ~90 minute orbital, and appeared to be a normal novalike
system. Therefore the current outburst is very odd indeed.
Steve Howell
Steve B. Howell
Planetary Science Institute M
620 N. 6th Ave.
Tucson, AZ 85705 USA
Phone (602) 622-6300
Fax (602) 622-8060
howell@frankenstein.psi.edu
(1994 Dec. 15)
CBS 31 has been on the RoboScope program for some time and we have observed several outbursts.
Lightcurve for cbs_31
Selected Outburst only observations from IU RoboScope
Hjd InsturmentalMag Error V = InstrMag + 1.585
2448921.95327 12.031 .012
2449333.85792 12.864 .003
2449334.99712 14.517 .043
2449367.71199 13.487 .011
2449367.74011 13.489 .005
2449367.78567 13.555 .024
2449443.60644 12.212 .011
2449444.67762 12.406 .005
2449444.75401 12.397 .005
2449446.64566 12.456 .004
2449446.68704 12.614 .003
2449449.84150 13.671 .004
2449699.92460 11.841 .008
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Jeff W. Robertson
Indiana University Astronomy
bigjay@enif.astro.indiana.edu
http://www.astro.indiana.edu/personnel/bigjay/
Don't try to be intelligent, just avoid stupidity.
CODE-set of symbols whose primary purpose is to restrict comprehension(Webster)
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(1994 Dec. 16)
Dear Colleagues, CBS31 (= SX LMi), whose current outburst was first announced by ROBOSCOPE was observed this morning (Dec. 16) at the Ouda Station with 0.6-m refl. + CCD. The observation revealed superhumps with an amplitude of 0.3 mag. Preliminary reduction gives the best estimate of superhump period of 100 min.
By this observation, SX LMi is for the first time identified
as a member of SU UMa stars.
The observation is continuing.
Regards,
Seiji Masuda (Kyoto University)