Galaxy evolution through resolved stellar populations in the nearby Centaurus A group

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dc.contributor.authorCrnojevic, Denija
dc.contributor.authorGrebel, E K
dc.contributor.authorFerguson, A. M. N.
dc.contributor.authorKoch, A.
dc.contributor.authorRejkuba, M.
dc.contributor.authorDa Costa, Gary
dc.contributor.authorJerjen, Helmut
dc.contributor.authorIrwin, M. J.
dc.contributor.authorBernard, E.J
dc.contributor.authorArimoto, N.
dc.contributor.authorJablonka, P
dc.contributor.authorKobayashi, Chiaki
dc.date.accessioned2022-08-17T03:48:33Z
dc.date.issued2015
dc.date.updated2021-08-01T08:36:45Z
dc.description.abstractThe CenA group is a nearby dense complex (∼ 4 Mpc) dominated by an active elliptical galaxy, hosting more than 60 dwarf companions with a variety of morphological types and stellar contents. We study the resolved stellar populations of a sample of dwarfs using optical and near-infrared data from ACS/HST and ISAAC/VLT. We characterize their recent star formation histories and metallicity content, and compare them to what is known for Local Group dwarfs, underlining similarities and differences. Our results probe the fundamental interplay between nature and nurture in the evolution of dwarfs in such a dense environment. We further present the results of the first deep survey of resolved stellar populations in the remote outer halo of our nearest giant elliptical, CenA (VIMOS/VLT optical data). Tracing its halo structure (radial profile, extent and metallicity) out to a remarkable ∼ 85 kpc and comparing the halo stellar populations to those of CenA’s dwarf companions enables us to constrain the mechanisms that contributed to the build-up of CenA in the context of cosmological galaxy formation models.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0037-8720en_AU
dc.identifier.urihttp://hdl.handle.net/1885/271414
dc.language.isoen_AUen_AU
dc.publisherSocieta Astronomica Italianaen_AU
dc.rights© SAIt 2015en_AU
dc.sourceMemorie Della Societa Astronomica Italianaen_AU
dc.titleGalaxy evolution through resolved stellar populations in the nearby Centaurus A groupen_AU
dc.typeJournal articleen_AU
local.bibliographicCitation.lastpage305en_AU
local.bibliographicCitation.startpage302en_AU
local.contributor.affiliationCrnojevic, Denija, University of Edinburghen_AU
local.contributor.affiliationGrebel, E K, ARI/ZAHen_AU
local.contributor.affiliationFerguson, A. M. N., University of Edinburghen_AU
local.contributor.affiliationKoch, A., LSW/ZAHen_AU
local.contributor.affiliationRejkuba, M., ESOen_AU
local.contributor.affiliationDa Costa, Gary, College of Science, ANUen_AU
local.contributor.affiliationJerjen, Helmut, College of Science, ANUen_AU
local.contributor.affiliationIrwin, M. J., University of Cambridgeen_AU
local.contributor.affiliationBernard, E.J , University of Edinburghen_AU
local.contributor.affiliationArimoto, N., Subaru Telescopeen_AU
local.contributor.affiliationJablonka, P, Laboratoire dAstrophysique, Ecole Polytechnique F´ed´erale de Lausanneen_AU
local.contributor.affiliationKobayashi, Chiaki, University of Hertfordshireen_AU
local.contributor.authoruidDa Costa, Gary, u9501331en_AU
local.contributor.authoruidJerjen, Helmut, u9611777en_AU
local.description.embargo2099-12-31
local.description.notesImported from ARIESen_AU
local.identifier.absfor000000 - Internal ANU use onlyen_AU
local.identifier.ariespublicationu4571891xPUB47en_AU
local.identifier.citationvolume86en_AU
local.publisher.urlhttp://www.libraweb.net/riviste.php?chiave=87&h=433&w=300en_AU
local.type.statusPublished Versionen_AU

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