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dc.contributor.authorWeilbacher, P.
dc.contributor.authorDuc, P.A.
dc.contributor.authorFritze, U.
dc.contributor.authorMartin, P.
dc.contributor.authorFricke, K.J.
dc.date.accessioned2007-12-10T16:24:49Z
dc.date.available2007-12-10T16:24:49Z
dc.date.issued2000
dc.identifier.citationWeilbacher , P , Duc , P A , Fritze , U , Martin , P & Fricke , K J 2000 , ' Tidal dwarf candidates in a sample of interacting galaxies ' , Astronomy and Astrophysics , vol. 358 , pp. 819-834 .
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 145343
dc.identifier.otherPURE UUID: 03be39a5-8860-4e5c-81e8-06ceb6210f73
dc.identifier.otherdspace: 2299/1177
dc.identifier.otherScopus: 0000171767
dc.identifier.urihttp://hdl.handle.net/2299/1177
dc.description.abstractWe present deep optical B,V,R images of a sample of 10 interacting systems which were selected for their resemblance to disturbed galaxies at high redshift. Photometry is performed on knots in the tidal features of the galaxies.We calculate a grid of evolutionary synthesis models with two metallicities and various burst strengths for systems consisting of some fraction of the stellar population of a progenitor spiral plus starburst. By comparison with two-color diagrams we interpret the photometric data, select from a total of about 100 condensations 36 star-forming objects that are located in the tidal features and predict their further evolution. Being more luminous by 4 mag than normal Hii regions we argue that these objects could be tidal dwarf galaxies or their progenitors, although they differ in number and mean luminosity from the already known tidal dwarf galaxies typically located at the end of tidal tails in nearby giant interacting systems. From comparison with our models we note that all objects show young burst ages. The young stellar component formed in these tidal dwarf candidates contributes up to 18% to the total stellar mass at the end of the starburst and dominates the optical luminosity. This may result in fading by up to 2.5 mag in B during the next 200 Myrs after the burst.en
dc.language.isoeng
dc.relation.ispartofAstronomy and Astrophysics
dc.titleTidal dwarf candidates in a sample of interacting galaxiesen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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