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dc.contributor.authorEden, D.~J.
dc.contributor.authorMoore, T.~J.~T.
dc.contributor.authorUrquhart, J.~S.
dc.contributor.authorElia, D.
dc.contributor.authorPlume, R.
dc.contributor.authorRigby, A.~J.
dc.contributor.authorThompson, M.~A.
dc.date.accessioned2017-07-11T15:16:50Z
dc.date.available2017-07-11T15:16:50Z
dc.date.issued2015-09-01
dc.identifier.citationEden , D J , Moore , T J T , Urquhart , J S , Elia , D , Plume , R , Rigby , A J & Thompson , M A 2015 , ' Star formation scales and efficiency in Galactic spiral arms ' , Monthly Notices of the Royal Astronomical Society , vol. 452 , no. 1 , pp. 289-300 . https://doi.org/10.1093/mnras/stv1323
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 9729899
dc.identifier.otherPURE UUID: c61fa3bc-60d4-420d-b655-2241a596b790
dc.identifier.otherBibtex: urn:29414a11a03ba21a4953c365dc4725ab
dc.identifier.otherScopus: 84940055133
dc.identifier.otherORCID: /0000-0001-5392-909X/work/42466463
dc.identifier.urihttp://hdl.handle.net/2299/18865
dc.descriptionThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. Available online at: https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stv1323
dc.description.abstractWe positionally match a sample of infrared-selected young stellar objects, identified by combining the Spitzer Galactic Legacy Infrared Mid-Plane Survey Extraordinaire, Wide-field Infrared Survey Explorer and Herschel Space Observatory Herschel infrared Galactic Plane Survey, to the dense clumps identified in the millimetre continuum by the Bolocam Galactic Plane Survey in two Galactic lines of sight centred towards l = 30° and 40°. We calculate the ratio of infrared luminosity, LIR, to the mass of the clump, Mclump, in a variety of Galactic environments and find it to be somewhat enhanced in spiral arms compared to the interarm regions when averaged over kiloparsec scales. We find no compelling evidence that these changes are due to the mechanical influence of the spiral arm on the star formation efficiency rather than, e.g. different gradients in the star formation rate due to patchy or intermittent star formation, or local variations that are not averaged out due to small source samples. The largest variation in LIR/Mclump is found in individual clump values, which follow a lognormal distribution and have a range of over three orders of magnitude. This spread is intrinsic as no dependence of LIR/Mclump with Mclump was found. No difference was found in the luminosity distribution of sources in the arm and interarm samples and a strong linear correlation was found between LIR and Mclump.en
dc.format.extent12
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectstars
dc.subjectformation
dc.subjectGalaxy
dc.subjectstructure
dc.subjectinfrared
dc.subjectISM
dc.subjectradio continuum
dc.titleStar formation scales and efficiency in Galactic spiral armsen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.relation.school
dcterms.dateAccepted2015-09-01
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stv1323
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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