---------- Forwarded message ---------- Date: Thu, 24 Oct 2002 07:34:50 +0200 (IST) From: Soker Noam <soker@physics.technion.ac.il> To: Alon Retter <retter@Physics.usyd.edu.au> Cc: tylenda@ncac.torun.pl, opejcha@volny.cz Subject: Re: [vsnet-campaign-v838mon 395] Re: V838 Mon interpretion in astro-ph/0210463 (fwd) Dear Ondrej, To your question on the concentric rings in V838 Mon, and the model proposed by R. Tylenda and me. (1) Is it clear these rings are part of the system? (2) In the case of 2 main sequence stars--then these are remnants from the protoplanetary disk. Or, they can even be spheres, as they may be formed from dust in an Oort-type cloud. (3) We also propose a collision of an horizontal branch star with a MS star. In that case, the rings were formed by the mass loss of hte HB progenitor, when it was on the RGB. Best Regards Noam ---------------------------------------------------------------- On Wed, 23 Oct 2002, 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... > > Best regards, > > Ondrej Pejcha