Show simple item record

dc.contributor.authorKaviraj, S.
dc.contributor.authorMark Crockett, R.
dc.contributor.authorSilk, J.
dc.contributor.authorWhitmore, B.C.
dc.contributor.authorMutchler, M.
dc.contributor.authorO'Connell, R.W.
dc.contributor.authorWindhorst, R.A.
dc.contributor.authorRejkuba, M.
dc.contributor.authorYi, S.
dc.contributor.authorFrogel, J.A.
dc.contributor.authorCalzetti, D.
dc.date.accessioned2013-10-31T14:01:05Z
dc.date.available2013-10-31T14:01:05Z
dc.date.issued2012-05-01
dc.identifier.citationKaviraj , S , Mark Crockett , R , Silk , J , Whitmore , B C , Mutchler , M , O'Connell , R W , Windhorst , R A , Rejkuba , M , Yi , S , Frogel , J A & Calzetti , D 2012 , ' A WFC3 study of globular clusters in NGC 4150 : An early-type minor merger ' , Monthly Notices of the Royal Astronomical Society: Letters , vol. 422 , no. 1 , pp. L96-L100 . https://doi.org/10.1111/j.1745-3933.2012.01246.x
dc.identifier.issn1745-3933
dc.identifier.otherPURE: 2067335
dc.identifier.otherPURE UUID: b00af0cd-5094-40ca-bf5b-6506286048da
dc.identifier.otherScopus: 84868100568
dc.identifier.otherORCID: /0000-0002-5601-575X/work/77850222
dc.identifier.urihttp://hdl.handle.net/2299/11950
dc.description.abstractWe combine near-ultraviolet (NUV; 2250 Å) and optical (U, B, V, I) imaging from the Wide Field Camera 3 (WFC3), on-board the Hubble Space Telescope (HST), to study the globular cluster (GC) population in NGC 4150, a sub-L* (M ~-18.48 mag) early-type minor-merger remnant in the Coma I cloud. We use broad-band NUV-optical photometry from the WFC3 to estimate individual ages, metallicities, masses and line-of-sight extinctions [E(B - V)] for 63 bright (M <-5 mag) GCs in this galaxy. In addition to a small GC population with ages greater than 10 Gyr, we find a dominant population of clusters with ages centred around 6 Gyr, consistent with the expected peak of stellar mass assembly in faint early types residing in lowdensity environments. The old and intermediate-age GCs in NGC 4150 are metal poor, with metallicities less than 0.1 Z, and reside in regions of low extinction [E(B - V) <0.05 mag]. We also find a population of young, metal-rich (Z > 0.3 Z) clusters that have formed within the last Gyr and reside in relatively dusty [E(B - V) > 0.3 mag] regions that are coincident with the part of the galaxy core that hosts significant recent star formation. Cluster disruption models (in which ~80-90 per cent of objects younger than a few ×10 yr dissolve every dex in time) suggest that the bulk of these young clusters are a transient population.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society: Letters
dc.titleA WFC3 study of globular clusters in NGC 4150 : An early-type minor mergeren
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=84868100568&partnerID=8YFLogxK
rioxxterms.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1745-3933.2012.01246.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record