The Cepheids Variable Stars Population in the Local Group Dwarf Irregular Galaxy Pegasus
Abstract
We present the result of a search for Cepheids in the Local Group dwarf irregular galaxy (DIG) Pegasus. We identified 20 Cepheid stars with periods 0d.6 < P < 15d.3. We have compared them with previously published Cepheids and we have carried out an accurate completeness analysis in order to obtain the fraction of them which are lost. Using their period-luminosity relation we obtain a distance for Pegasus of 950±30 Kpc.
- Publication:
-
Stellar Populations as Building Blocks of Galaxies
- Pub Date:
- August 2007
- DOI:
- Bibcode:
- 2007IAUS..241..365M
- Keywords:
-
- local group galaxies: individual (Pegasus;
- DDO216;
- UGC12613);
- galaxies: dwarf;
- galaxies: stellar content;
- stars: variables: Cepheids