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The Stellar Populations of dE Galaxies in Nearby Groups

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dc.contributor.authorDa Costa, Gary
dc.date.accessioned2015-12-13T23:11:31Z
dc.date.available2015-12-13T23:11:31Z
dc.date.issued2004
dc.date.updated2015-12-12T08:27:53Z
dc.description.abstractIn this contribution Gemini-North NIRI J,K-observations are used to investigate the upper-Asymptotic Giant Branch (AGB) intermediate-age population in the M81 Group dwarf elliptical (dE) F8D1. Hubble Space Telescope (HST) 'snapshot' V,I-observations are also analysed to investigate the upper-AGB populations in two other M81 Group dEs, DDO 71 and kk077. In all three dEs, significant intermediate-age populations are found. Further, there are sizeable dE-to-dE differences in these populations: F8D1 contains relatively more, and relatively more luminous, upper-AGB stars. These results are compared with existing information for Local Group and Sculptor group dwarfs. It is suggested that 'environmental harrassment' plays an important role in governing dwarf galaxy evolution.
dc.identifier.issn1323-3580
dc.identifier.urihttp://hdl.handle.net/1885/87618
dc.publisherCSLI Publications
dc.sourcePublications of the Astronomical Society of Australia
dc.subjectKeywords: Galaxies: dwarf; Galaxies: evolution; Galaxies: stellar content; Stars: Population II
dc.titleThe Stellar Populations of dE Galaxies in Nearby Groups
dc.typeJournal article
local.bibliographicCitation.lastpage370
local.bibliographicCitation.startpage366
local.contributor.affiliationDa Costa, Gary, College of Physical and Mathematical Sciences, ANU
local.contributor.authoruidDa Costa, Gary, u9501331
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor020103 - Cosmology and Extragalactic Astronomy
local.identifier.ariespublicationMigratedxPub16975
local.identifier.citationvolume21
local.identifier.doi10.1071/AS04044
local.identifier.scopusID2-s2.0-32544451179
local.type.statusPublished Version

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