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GO Com: new SU UMa-star now undergoing a superoutburst! Dear Colleagues, As reported by Tom Krajci, GO Com is now displaying flashing superhumps, finally confirming the SU UMa-type nature of this object. The object is now by 0.3-0.4 mag brighter than its precursor outburst starting on June 3. The Kyoto team (observer: M. Uemura and R. Ishioka) also succeeded in obtaining full data last night, which just precedes Krajci's observation. The preliminary superhump period on June 4 observation is 0.0635(4) d, which generally confirms Krajci's report. The mean superhump profile is presented at: http://vsnet.kusastro.kyoto-u.ac.jp/pub/vsnet/DNe/GO_Com/gosh.gif Fully grown superhumps are clearly seen! We have tried to reanalyze the June 2 observations to further investigate the growing stage of the superhumps, but the signal is not yet evident (although the result is still preliminary), at least not so evident as in T Leo 1993 superoutburst). In any case, we *very* strongly encourage further intensive observations to fully cover the present, long-awaited rare superoutburst of this object! Regards, Taichi Kato VSNET Collaboration team
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
