Asymptotic Giant Branch Variables in NGC 6822
Abstract
Multi-epoch JHKS photometry is used to identify large amplitude variables and to study the AGB population of NGC 6822. 50 Mira variables, ranging in period from 128 to 998 days, have been identified. The majority of these are around 1 to 4 Gyr old, but a significantly younger component is also identified.
- Publication:
-
Tracing the Ancestry of Galaxies
- Pub Date:
- December 2011
- DOI:
- Bibcode:
- 2011IAUS..277..337W
- Keywords:
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- stars: AGB and post-AGB;
- stars: carbon;
- stars: variables: other;
- galaxies: individual: NGC 6822;
- galaxies: stellar content;
- (galaxies:) Local Group