In message "[vsnet-campaign-v838mon 395] Re: V838 Mon interpretion in astro-ph/0210463", Ondrej Pejcha wrote... >Dear colleagues, > >I've read with interest paper of Soker and Tylenda. But I >have a question to general public. Does anyone know how can >the model of Soker and Tylenda produce concentric rings in >the nebula around V838 Mon as observed with HST? Could it be >some early stage of resonance of orbital periods in the >protoplanetary disk caused by some unseen body far away from >the outbursting star? I'm just guessing... Nebular around V838 Mon was appeared by light-echo of outburst. After V838 Mon dimmed and was not enough to illuminate the nebular no longer, central hole was appeared. The central hole does not exist in HST image in May. The central hole apparently exist and does not mean whether dust exist just around V838 Mon or not, I think. Seiichiro Kiyota ---- Seiichiro Kiyota skiyota@nias.affrc.go.jp Laboratory of Stress Physiology National Insititute of Agrobiological Science Tel:81-298-38-8384 Fax:81-298-38-8347