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dc.contributor.authorGeach, J.E.
dc.contributor.authorSmail, I.
dc.contributor.authorCoppin, Kristen
dc.contributor.authorMoran, S.M.
dc.contributor.authorEdge, A.C.
dc.contributor.authorEllis, R.S.
dc.date.accessioned2014-01-27T11:00:32Z
dc.date.available2014-01-27T11:00:32Z
dc.date.issued2009-05-01
dc.identifier.citationGeach , J E , Smail , I , Coppin , K , Moran , S M , Edge , A C & Ellis , R S 2009 , ' CO interferometry of gas-rich spiral galaxies in the outskirts of an intermediate redshift cluster ' , Monthly Notices of the Royal Astronomical Society: Letters , vol. 395 , no. 1 , pp. L62-L66 . https://doi.org/10.1111/j.1745-3933.2009.00642.x
dc.identifier.issn1745-3933
dc.identifier.otherPURE: 2713222
dc.identifier.otherPURE UUID: e4cff13d-2771-483e-8838-9b36be07e50d
dc.identifier.otherScopus: 77956671435
dc.identifier.otherORCID: /0000-0002-0729-2988/work/30423105
dc.identifier.urihttp://hdl.handle.net/2299/12677
dc.description.abstractWe present IRAM Plateau de Bure Interferometer 3-mm observations of CO j(1→ 0) emission in two 24-μm selected starburst galaxies in the outskirts (~2-3,R) of the rich cluster C1 0024+16 (z = 0.395). The galaxies' inferred far-infrared luminosities place them in the luminous infrared galaxy (LIRG) class (L > 10 L), with star formation rates of ~60M yr. Strong CO j(1→0) emission is detected in both galaxies, and we use the CO line luminosity to estimate the mass of cold molecular gas, M(H). Assuming M(H)/L' = 0.8 M (K km pc, we estimate M(H) = (5.4-9.1) × 10 M for the two galaxies. We estimate the galaxies' dynamical masses from their CO line widths, M ~ 1-3 × 10 M, implying large cold gas fractions in the galaxies' central regions. At their current rates, they will complete the assembly of M ~ 10 M and double their stellar mass within as little as ~150 Myr. If these galaxies are destined to evolve into S0s, then the short time-scale for stellar mass assembly implies that their major episode of bulge growth occurs while they are still in the cluster outskirts, long before they reach the core regions. Subsequent fading of the disc component relative to the stellar bulge after the gas reservoirs have been exhausted could complete the transformation of spiral-to-S0.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society: Letters
dc.titleCO interferometry of gas-rich spiral galaxies in the outskirts of an intermediate redshift clusteren
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=77956671435&partnerID=8YFLogxK
rioxxterms.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1745-3933.2009.00642.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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