C star survey of the Local Group Galaxies. III The Sagittarius dwarf irregular and Leo I dwarf spheroidal galaxies

Abstract

We present the latest results of our ongoing homogeneous cool C star survey of Local Group dwarf galaxies. We apply our two color photometric technique to the study of two small galaxies: the Sagittarius dwarf (SagDIG) and Leo I. We identify 16 C stars in SagDIG and 13 C stars in Leo I. Even though both galaxies have a known C star population, we identify 7 previously unknown C stars in each galaxy. The photometric properties of all the known C stars in each galaxy are presented. It is shown that our definition of a C star, based on our photometric criteria, produces a subset of carbon stars with homogeneous properties useful for population comparison.

to be published in the Astronomical Journal

References in corpus (1)

• The extent of NGC 6822 revealed by its C stars population

Cited by in corpus (23)

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• Carbon in Red Giants in Globular Clusters and Dwarf Spheroidal Galaxies
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• The distance to the Leo I dwarf spheroidal galaxy from the Red Giant Branch Tip
• HST/ACS observations of the old and metal-poor Sagittarius dwarf irregular galaxy
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• Asymptotic Giant Branch Stars in the Leo I Dwarf Spheroidal Galaxy
• Carbon star survey in the Local Group. VII. NGC 3109 a galaxy without a stellar halo
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• Near-Infrared photometry of carbon stars in the Sagittarius dwarf irregular galaxy and DDO 210
• Star formation history and evolution of gas-rich dwarf galaxies in the Centaurus A group
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• The Isaac Newton Telescope monitoring survey of Local Group dwarf galaxies--V. The star formation history of Sagittarius dwarf irregular galaxy derived from long period variable stars
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• The ionization structure and chemical history in isolated H II regions of dwarf galaxies with IFU I. The Sagittarius Dwarf Irregular Galaxy
• A statistical analysis of the late-type stellar content in the Andromeda halo