Main-sequence fitting and the Hipparcos open cluster distance scale
Astrophysics
2007-05-23 v1
Abstract
The difference between the Hipparcos open cluster distance scale and that obtained from main sequence fitting is examined. The two color main sequence fitting technique of Pinsonneault et al. (1998) is extended to NGC 2516, NGC 6475, and NGC 6633. The error sources for main sequence fitting are examined, and possible evidence for systematic errors in the Hipparcos parallaxes is discussed.
Cite
@article{arxiv.astro-ph/9911522,
title = {Main-sequence fitting and the Hipparcos open cluster distance scale},
author = {M. H. Pinsonneault and D. M. Terndrup and Y. Yuan},
journal= {arXiv preprint arXiv:astro-ph/9911522},
year = {2007}
}
Comments
10 pages, includes two figures, to appear in Stellar Clusters and Associations: Convection, Rotation, and Dynamos, ed. R. Pallavicini