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Adjusting the distance scales of old and intermediate-age tracers via statistical parallaxes

Published online by Cambridge University Press:  26 February 2013

A. K. Dambis
A. K. Dambis*
Affiliation:
Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University, Universitetskii pr. 13, Moscow, 119992Russia email: mirage@sai.msu.ru
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Abstract

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The method of statistical-parallax determination is used to adjust the photometric distance-scale zero points and test the selection of several samples of old and intermediate-age tracer objects in the Milky Way, including RR Lyrae- and Mira-type variables, blue and red horizontal-branch stars, and red giants. We obtain reasonable and stable absolute-magnitude (and, hence, photometric distance-scale) corrections for all samples except for the red horizontal-branch stars, which appear to be significantly contaminated by main-sequence turn-off and subgiant stars.

Keywords

stars: distancesstars: luminositiesstars: kinematicsstars: classificationstars: horizontal-branchstars: variables: other
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S289: Advancing the Physics of Cosmic Distances , August 2012 , pp. 44 - 47
Copyright
Copyright © International Astronomical Union 2013

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