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The following message is from John Greaves. I personally reached the same comclusion using the same material -- but had no time to write it down ... ;-) GT Ori has been widely(?) announced as a "prototypical" SRd star, and there was a call for observation because "this star is one of the easiest SRd stars to catch variability". I also joined this project and made a few estimates. I haven't heard whether this campaign yielded a positive result, though. It was about 20 years ago. Regards, Taichi Kato === Looking at http://vsnet.astrouw.edu.pl/cgi-asas/asas_lc/054329+0005.0 it does indeed seem likely that GT Ori is indeed some sort of YSO, specifically the sort prone to occasional eclipse-like dips in magnitude. Although the plot is a bit sparse, and there is possibly still some worry about ASAS3 data such that short duration dips could be spurious, the relative rapidity of the dips, and their apparently relatively short duration in comparison to a couple of fairly long intervals of near constancy do not particular fit an SRd star, whilst being somewhat reminiscent of MisV1147, for example. Cheers John
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
