Re: NSV 10892

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

On Fri, 9 Aug 2002 09:21:38 -0500, Michael Koppelman wrote:

>Yeah, I was thinking about that, too. I'll give it a go.
>
>Michael
>
>On Friday, August 9, 2002, at 01:07  AM, Patrick Wils wrote:
>
>> Since you have a very complete lightcurve and temperature info, I think
>> you should make an attempt to derive orbital elements using the
>> Wilson-Devinney code.

This one will be tough for two reasons: (1) it has a large O-Connell
effect (maxima at different levels) indicating spot or other activity
and (2) the eclipses are partial so you will have almost no handle on
the mass ratio. The mass ratio problem will have to be solved by
getting radial velocities. (1) is tougher even with high precision
photometry. You really need very high resolution spectra to do Doppler
imaging. I could probably get 1.8m time at DAO to do the radial
velocities. The Doppler imaging work would be tough to sell because
you'll need 3-4m class telescopes. 

Dirk