Variable Stars in the Fornax Dwarf Galaxy

Details Variable Stars in the Fornax Dwarf Galaxy Variable Stars in the Fornax Dwarf Galaxy

2001-10-25

arxiv.org/abs/astro-ph/0110555v1

Astronomy and Astrophysics

Astrophysics

To appear in AJ, full resolution figures avilable at http://cfa-www.harvard.edu/~dbersier/

Scientific paper

10.1086/338315

We present a search for variable stars in the Fornax dwarf galaxy covering an area of 1/2 a square degree. We have ~30 epochs of VI data. We found and determined periods for more than 500 RR Lyrae, 17 anomalous Cepheids, 6 Population II Cepheids. In addition we have 85 candidate Long Period Variables, the majority of which were previously unknown. We estimated that the average metal abundance of RR Lyrae stars is [Fe/H] ~ -1.6 dex.

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