Variable stars in the Fornax dwarf galaxy

D. Bersier; P. R. Wood

doi:10.1086/338315

Variable stars in the Fornax dwarf galaxy

D. Bersier^*
, P. R. Wood

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

66 Citations (Scopus)

Abstract

We present a search for variable stars in the Fornax dwarf galaxy covering an area of half a square degree. We have ∼30 epochs of VIdata. We found and determined periods for more than 500 RR Lyrae, 17 anomalous Cepheids, and six Population II Cepheids. In addition we have 85 candidate long-period variables, the majority of which were previously unknown. We estimate that the average metal abundance of RR Lyrae stars is [Fe/H] ≃ -1.6 dex.

Original language	English
Pages (from-to)	840-847
Number of pages	8
Journal	Astronomical Journal
Volume	123
Issue number	2 1754
DOIs	https://doi.org/10.1086/338315
Publication status	Published - Feb 2002

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10.1086/338315

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abstract = "We present a search for variable stars in the Fornax dwarf galaxy covering an area of half a square degree. We have ∼30 epochs of VIdata. We found and determined periods for more than 500 RR Lyrae, 17 anomalous Cepheids, and six Population II Cepheids. In addition we have 85 candidate long-period variables, the majority of which were previously unknown. We estimate that the average metal abundance of RR Lyrae stars is [Fe/H] ≃ -1.6 dex.",

keywords = "Distance scale, Galaxies: individual (Fornax), RR Lyrae variable, Stars: variables: general",

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AU - Wood, P. R.

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N2 - We present a search for variable stars in the Fornax dwarf galaxy covering an area of half a square degree. We have ∼30 epochs of VIdata. We found and determined periods for more than 500 RR Lyrae, 17 anomalous Cepheids, and six Population II Cepheids. In addition we have 85 candidate long-period variables, the majority of which were previously unknown. We estimate that the average metal abundance of RR Lyrae stars is [Fe/H] ≃ -1.6 dex.

AB - We present a search for variable stars in the Fornax dwarf galaxy covering an area of half a square degree. We have ∼30 epochs of VIdata. We found and determined periods for more than 500 RR Lyrae, 17 anomalous Cepheids, and six Population II Cepheids. In addition we have 85 candidate long-period variables, the majority of which were previously unknown. We estimate that the average metal abundance of RR Lyrae stars is [Fe/H] ≃ -1.6 dex.

KW - Distance scale

KW - Galaxies: individual (Fornax)

KW - RR Lyrae variable

KW - Stars: variables: general

UR - https://www.scopus.com/pages/publications/0037683046

U2 - 10.1086/338315

DO - 10.1086/338315

M3 - Article

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VL - 123

SP - 840

EP - 847

JO - Astronomical Journal

JF - Astronomical Journal

IS - 2 1754

ER -

Variable stars in the Fornax dwarf galaxy

Abstract

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