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OB Associations, Open Clusters, and the Luminosity Calibration of the Nearer Stars

Published online by Cambridge University Press:  30 March 2016

Anthony Brown
Anthony Brown*
Affiliation:
European Southern Observatory, Karl-Schwarzschildstraße 2, 85748 Garching bei München, Germany

Abstract

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In the context of the luminosity calibration of the nearer stars I discuss the Hipparcos results on distances to nearby OB associations and open clusters. The shortcomings and assumptions in the analyses used to derive these results are pointed out and for the open clusters a comparison is made with results obtained from main sequence fitting. I conclude that given the considerable uncertainties in the latter technique there is no convincing evidence that the Hipparcos based distances to open clusters beyond the Hyades should not be trusted.

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 12: Highlights of Astronomy. As presented at the XXIVth General Assembly of the IAU, 2000 , 2002 , pp. 665 - 668
Copyright
Copyright © Astronomical Society of Pacific 2002

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