Astron. Astrophys. 332, 875-876 (1998)

About statistical-parallax algorithms

A. Heck ¹ and J. Fernley <sup>2

1</sup> Observatoire Astronomique, 11 rue de l'Université, F-67000 Strasbourg, France (e-mail: heck@astro.u-strasbg.fr)
² Astronomy Centre, University of Sussex, Falmer, Brighton BN1 9QJ, UK (e-mail: jaf@star.cpes.susx.ac.uk)

Received 26 November 1997 / Accepted 7 January 1998

Abstract

The results obtained by two algorithms of statistical parallaxes applied to a large sample of RR Lyrae stars are compared. They show no significant difference and confirm the validity of the earlier approach based on the principle of maximum likelihood.

Key words: RR Lyrae stars stars: distances

Send offprint requests to: A. Heck

SIMBAD Objects

Contents

• 1. Introduction
• 2. The data and the calibrations
  • 2.1. Calibrations with individual reddening corrections
  • 2.2. Calibrations with an average reddening correction
  • 2.3. Calibrations according to the metallicity
• 3. Comments and conclusion
• References

© European Southern Observatory (ESO) 1998

Online publication: March 30, 1998
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