[vsnet-campaign-nova 173] Re: (fwd) V445 Pup (Eyres)

[Taichi Kato <tkato>]

Re: (fwd) V445 Pup (Eyres)

> > A number of symbiotic stars, particularly the so-called symbiotic
> > novae (e.g. HM Sge) have spectra early in their outbursts which show
> > no hint of a red giants, and often these objects were not even
> > identified as symbiotic stars until outburst.  Also, as far as I can
> > tell some symbiotic novae (e.g. HM Sge, V1016 Cyg) do not appear in
> > the  2MASS Second Incremental Release Point Source Catalog.  The
> > H-deficiency is harder to explain in the symbiotic model however.
> 
>    They are very bright 2MASS sources.

   Furthermore, these two stars show Mira-type pulsations in the JHK bands,
which shows the M-type star is clearly visible in the near-IR.

Regards,
Taichi Kato

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