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dc.contributor.authorSmith, Daniel
dc.contributor.authorSimpson, C.
dc.contributor.authorSwinbank, A.M.
dc.contributor.authorRawlings, S.
dc.contributor.authorJarvis, M.J.
dc.date.accessioned2010-10-27T08:19:53Z
dc.date.available2010-10-27T08:19:53Z
dc.date.issued2010
dc.identifier.citationSmith , D , Simpson , C , Swinbank , A M , Rawlings , S & Jarvis , M J 2010 , ' When galaxies collide : understanding the broad absorption-line radio galaxy 4C +72.26 ' , Monthly Notices of the Royal Astronomical Society , vol. 404 , no. 3 , pp. 1089-1099 . https://doi.org/10.1111/j.1365-2966.2010.16279.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 181246
dc.identifier.otherPURE UUID: 293df59f-f128-48dd-8596-1fbf119dc311
dc.identifier.otherdspace: 2299/4925
dc.identifier.otherWOS: 000277381800001
dc.identifier.otherScopus: 77953548629
dc.identifier.urihttp://hdl.handle.net/2299/4925
dc.descriptionOriginal article can be found at: http://www3.interscience.wiley.com/ Copyright Royal Astronomical Society
dc.description.abstractWe present a range of new observations of the 'broad absorption-line radio galaxy' 4C +72.26 (z≈ 3.5) , including sensitive rest-frame ultraviolet integral field spectroscopy using the Gemini/GMOS-N instrument and Subaru/CISCO K-band imaging and spectroscopy. We show that 4C +72.26 is a system of two vigorously star-forming galaxies superimposed along the line of sight separated by ∼1300 ± 200 km s−1 in velocity, with each demonstrating spectroscopically resolved absorption lines. The most active star-forming galaxy also hosts the accreting supermassive black hole which powers the extended radio source. We conclude that the star formation is unlikely to have been induced by a shock caused by the passage of the radio jet, and instead propose that a collision is a more probable trigger for the star formation. Despite the massive starburst, the ultraviolet-mid-infrared spectral energy distribution suggests that the pre-existing stellar population comprises ∼1012 M⊙ of stellar mass, with the current burst only contributing a further ∼2 per cent, suggesting that 4C +72.26 has already assembled most of its final stellar mass.en
dc.format.extent11
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsOpen
dc.subjectgalaxies: haloes
dc.subjectgalaxies: high-redshift
dc.subjectgalaxies: individual: 4C+72
dc.subject26
dc.subjectquasars: emission lines
dc.subjectgalaxies: starburst
dc.subjectK-Z RELATION
dc.subjectSTAR-FORMATION HISTORY
dc.subjectCOSMIC MICROSCOPE
dc.subjectEARLY UNIVERSE
dc.subject4C 41.17
dc.subjectQUASARS
dc.subjectSPECTROSCOPY
dc.subjectSAMPLE
dc.subjectDUST
dc.subjectSTELLAR
dc.titleWhen galaxies collide : understanding the broad absorption-line radio galaxy 4C +72.26en
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.relation.schoolSchool of Physics, Astronomy and Mathematics
dcterms.dateAccepted2010
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1365-2966.2010.16279.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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