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NGC 6822: short period variable stars, stellar population and distance scale

Published online by Cambridge University Press:  12 April 2016

Lara Baldacci ,
Luca Rizzi ,
Gisella Clementini  and
Enrico V. Held
Lara Baldacci
Affiliation:
Bologna University, via Ranzani 1, I-40127 Bologna
Luca Rizzi
Affiliation:
INAF - Padova Observatory, vicolo dell’Osservatorio 5 I-35122 Padova
Gisella Clementini
Affiliation:
INAF - Bologna Observatory, via Ranzani 1 I-40127 Bologna
Enrico V. Held
Affiliation:
INAF - Padova Observatory, vicolo dell’Osservatorio 5 I-35122 Padova

Abstract

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Results are presented on a study of the short period variable stars in the dwarf irregular galaxy NGC 6822. We observed an almost uniformly populated classical instability strip from the Horizontal Branch up to the Classical Cepheid region. The main goal we achieved from the analysis of the faint sample is the first detection of RR Lyrae stars in this galaxy.

Type
Part 2. What variable stars tell us about the Local Group, including the distance scale
Information
International Astronomical Union Colloquium , Volume 193: Variable Stars in the Local Group , 2004 , pp. 91 - 94
Copyright
Copyright © Astronomical Society of the Pacific 2004

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