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Stellar populations in local group dwarf elliptical galaxies. II - NGC 205NGC 205, a dwarf elliptical companion of M31, was studied using deep CCD photometry on the VRI system. Consideration is given to a comparison between the giant branch and the Galactic globular clusters, the degree of chemical enrichment in the outer parts of NGC 204, and the setting of constraints on the stellar population of NGC 205. Should the distance of the galaxy be that of M31, this field's stellar population is extremely old. If star formation in NGC 205 is a recurring phenomenon, it is confined to the interior of the galaxy. Should the stellar population of NGC 205 be as old as Galactic globular clusters, its distance modulus is 24.3 + or - 0.2. The giant branch location corresponds to a mean metallicity greater than or equal to -0.9 + or - 0.2, and a metallicity dispersion is determined to be sigma greater than or equal to 0.5 dex. Also noted is that the color distribution at a given luminosity appears to be positively skewed.
Document ID
19840046400
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mould, J.
(Palomar Observatory, Pasadena, CA; Kitt Peak National Observatory, Tucson AZ, United States)
Kristian, J.
(Kitt Peak National Observatory Tucson, AZ, United States)
Da Costa, G. S.
(Kitt Peak National Observatory Tucson, AZ, United States)
Date Acquired
August 12, 2013
Publication Date
March 15, 1984
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 278
ISSN: 0004-637X
Subject Category
Astronomy
Accession Number
84A29187
Funding Number(s)
CONTRACT_GRANT: NSF AST-83-06139
Distribution Limits
Public
Copyright
Other

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