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KV Dra rare outburst As Mike Simonsen reported, the SU UMa-type dwarf nova KV Dra (RX J1450.5+6403) is reported to be in outburst. The object underwent an superoutburst in 2000 May (see vsnet-alert 4858 and Nogami et al. 2000 A&A 364, 701). However, only two normal outbursts have been reported since then. The outburst frequency of this object may be low. Kato et al. (2001) PASJ 53, 1191 wrote: > System with a short orbital period (Porb = 0.05898 d, > P_SH = 0.0601 d). Nogami et al. (2000) suggested the object to be > an intermediate object between WZ Sge-type and ER UMa-type stars. > One well-established superoutburst in 2000 May and subsequent normal > outbursts are known. The lack of further outbursts (VSNET) may suggest > a lower typical frequency of outbursts than proposed by > Nogami et al. Kato et al. (2000) reported double-wave modulations > in quiescence, which are reminiscent of those of WZ Sge. > More observations are needed to establish the outburst behavior and > the evolution of superhumps. Although the present magnitude is fainter than the 2000 superoutburst, please observe KV Dra as intensively as possible! Regards, Taichi Kato VSNET Collaboration team
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
