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[vsnet-chat 2308] Re: GM Sgr
- Date: Fri, 17 Sep 1999 08:53:07 -0700 (PDT)
- To: Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>, vsnet-chat@kusastro.kyoto-u.ac.jp
- From: Lew Cook <lcoo@yahoo.com>
- Subject: [vsnet-chat 2308] Re: GM Sgr
- Cc: aavso-discussion@physics.mcmaster.ca
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
Has anyone else done spectroscopy of GM SGR not
associated with an outburst?
Lew
--- Taichi Kato <tkato@kusastro.kyoto-u.ac.jp> wrote:
> GM Sgr is definitely an X-ray binary, not a CV.
> This source probably
> contains a black hole or a neutron star. The very
> strong HeII emission
> lines detected by Ayani et al. are indicative.
>
> > Could the early type spectrum fade completely and
> the
> > late star's light dominate the system at minimum?
>
> It may be possible, if the accretion completely
> stops. But before
> conludind, one might wish to confirm whether the
> right star was observed.
>
> Regards,
> Taichi Kato
>
>
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