Return to Home Page
DM Dra superoutburst: superhump period and profile Dear Colleagues, We have received additional nightly long time-series data of DM Dra from Torii-san (RIKEN). We have partly analyzed the available data. The superhumps are prominently seen on all observed nights, with a typical amplitude of 0.20 mag. Since DM Dra apparently showed almost disappearance of the superhumps during the late stage of a past superoutburst (cf. Kato et al. (2002) IBVS No. 5284), further continuous observations are strongly recommended. Based on March 7-9 data (including Maehara-san's data), the best period has been determined to be 0.07571(6) d. Although the period can vary during the course of the superoutburst, the present period determination provides additional support to the previous period identification (Kato et al. 2002). The overall quality of the data have already surpassed that of the 2001 observation. The superhump profile up to now is posted at: http://vsnet.kusastro.kyoto-u.ac.jp/pub/vsnet/DNe/DM_Dra/dmsh2.gif Regards, Taichi Kato VSNET Collaboration team
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
