NOAO > Observing Info > Approved Programs > 2004B-0455
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NOAO > Observing Info > Approved Programs > 2004B-0455 |
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PI: Leslie Hebb, Johns Hopkins Univ., leslieh@pha.jhu.edu
Address: Dept Physics & Astronomy, 3400 N. Charles St., Baltimore, MD 21218, USA
CoI: Dr. Rosemary F. G. Wyse, Johns Hopkins Univ
CoI: Dr. Gerard Gilmore, Institute of Astronomy, Cambridge University
Title: The Masses of Low Mass Stars: Radial Velocity Curve of a Candidate M2V/M4V Eclipsing Binary System in NGC 1647
Abstract:
We propose to obtain a radial velocity curve of a candidate M-dwarf
eclipsing binary system in the Galactic open cluster NGC 1647. We have
discovered the system through our analysis of light curves derived from
our large photometric dataset of selected open clusters, obtained with
the Mosaic detector on the KPNO-4m telescope. Radial velocity
measurements are necessary first to assess the binary nature and cluster
membership of the candidate system. If this is confirmed, the
observations will lead to a derivation of the orbital solution for the
system and ultimately the masses and radii of the component stars in the
binary. These observations will be used to better calibrate the mass-
luminosity relation as a function of age and metallicity, a fundamental,
but poorly constrained quantity for low-mass stars.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
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NOAO > Observing Info > Approved Programs > 2004B-0455 |
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