Re: NSV 10892

["Dirk Terrell" <terrell@boulder.swri.edu>]

On Fri, 9 Aug 2002 11:41:28 -0500, Michael Koppelman wrote:

>If you think it is worth your time, this would be great. That would be 
>spectroscopy? Or you can get that with photometry? Or both?

You need spectra to get velocities.

>In regards to the Doppler stuff, it would be great fun but probably 
>fruitless for me to write a proposal to get some Mayall time. Do you think?

The 4m is highly oversubsribed. It would be a hard sell, especially
since this one looks to be pretty much a run-of-the-mill overcontact
system. Spectra with a 1.5 to 2m class telescope would go a long way
towards understanding the binary. I'm not even sure if they even have
an appropriate spectrograph for Doppler imaging on the 4m. I have time
on the ESO 2.2m in Chile next February to do some spectroscopy on
early-type overcontact binaries and it has a very nice spectrograph on
it. But this one wouldn't be in the right place. Besides, our schedule
is pretty busy during that run.

>So, it seems that when I originally brought this star up that the 
>consensus was it was not part of the cluster, and thus we would have no 
>additional clues about it's distance, right?

If it is a cluster member, that would help sell it to the TACs of the
bigger telescopes. 

Dirk