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Title:
Statistical effects from Hipparcos astrometry
Authors:
Arenou, Frédé; Luri, Xavier
Publication:
In: Highlights of Astronomy, Vol. 12, as presented at the XXIVth General Assembly of the IAU - 2000 [Manchester, UK, 7 - 18 August 2000]. Edited by H. Rickman. San Francisco, CA: Astronomical Society of the Pacific, ISBN 1-58381-086-2, 2002, p. 661 - 664
Publication Date:
00/2002
Origin:
ARI
ARI Keywords:
Hipparcos, Astrometry
Abstract Copyright:
IAU
Comment:
JD13: HIPPARCOS and the luminosity calibration of nearer stars. Eds.: T. Lloyd Evans; J.-C. Mermilliod.; ISBN: 1-58381-086-2
Bibliographic Code:
2002HiA....12..661A

Abstract

The Hipparcos astrometry is used mainly for the derivation of stellar physcial quantities such as luminosity, masses and velocity. However, sample selections on data with observational errors or an intrinsic dispersion may lead to biased estimates, especially when the error distributions are non-Gaussian. We review the classical biases and the ways to avoid them through the use of statistical methods.

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Physics
arXiv e-prints