[vsnet-alert 808] possible outburst of AQ CMi

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

   In [vsnet-obs 5353], Jochen Pietz requests for confirmation of his
possible detection of a rare outburst of the SU UMa-type dwarf nova
AQ CMi, for the second time since its discovery.

    AQ CMi   1997-03-28.88  14.5

    AQ CMi was discovered as a possible dwarf nova by Morgenroth (AN 251,
326, 1934) who recorded the star in outburst on three plates between
JD 2427155 and 2427160 (1933 March).  Downes and Shara (1993) identifed
AQ CMi with a very faint object of 19-20 mag.  Recent spectroscopy by
Zwitter et al. revealed the CV nature of this counterpart.  The first ever
outburst since the discovery was independently detected by J. Pietz on
1996 Feb. 10 visually (vsnet-alert 323) and by R. U. Claudi on 1996 Feb. 9
spectroscopically (vsnet-alert 324).  Subsequent photoelectric photometry
by A. Shambrook at CTIO (communicated by J. Patterson, vsnet-obs 2105,
vsnet-alert 327) and CCD photometry by D. Nogami (vsnet-alert 328)
independently detected superhumps with a period of 95.9 and 95.4 min,
respectively.  (cf. http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/aqcmi.html
for more information and calibrated V-band chart).

    Immediate confirmation and follow-up observations of of the present
possible outburst are urgently requested.

Regards,
Taichi Kato

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