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dc.contributor.authorPenny, S. J.
dc.contributor.authorBrown, M. J. I.
dc.contributor.authorPimbblet, K. A.
dc.contributor.authorCluver, M. E.
dc.contributor.authorCroton, D. J.
dc.contributor.authorOwers, M. S.
dc.contributor.authorLange, R.
dc.contributor.authorAlpaslan, M.
dc.contributor.authorBaldry, I.
dc.contributor.authorBland-Hawthorn, J.
dc.contributor.authorBrough, S.
dc.contributor.authorDriver, S. P.
dc.contributor.authorHolwerda, B. W.
dc.contributor.authorHopkins, A. M.
dc.contributor.authorJarrett, T. H.
dc.contributor.authorJones, D. Heath
dc.contributor.authorKelvin, L. S.
dc.contributor.authorLara-López, M. A.
dc.contributor.authorLiske, J.
dc.contributor.authorLópez-Sánchez, A. R.
dc.contributor.authorLoveday, J.
dc.contributor.authorMeyer, M.
dc.contributor.authorNorberg, P.
dc.contributor.authorRobotham, A. S. G.
dc.contributor.authorRodrigues, M.
dc.date.accessioned2018-01-23T11:30:14Z
dc.date.available2018-01-23T11:30:14Z
dc.date.issued2015-11-11
dc.identifier.citationPenny , S J , Brown , M J I , Pimbblet , K A , Cluver , M E , Croton , D J , Owers , M S , Lange , R , Alpaslan , M , Baldry , I , Bland-Hawthorn , J , Brough , S , Driver , S P , Holwerda , B W , Hopkins , A M , Jarrett , T H , Jones , D H , Kelvin , L S , Lara-López , M A , Liske , J , López-Sánchez , A R , Loveday , J , Meyer , M , Norberg , P , Robotham , A S G & Rodrigues , M 2015 , ' Galaxy And Mass Assembly (GAMA) : the bright void galaxy population in the optical and mid-IR ' Monthly Notices of the Royal Astronomical Society , vol 453 , no. 4 , pp. 3519-3539 . DOI: 10.1093/mnras/stv1926en
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 252099761
dc.identifier.otherPURE UUID: 643a0f8b-90ee-40ee-b489-dffd3b53139d
dc.identifier.otherArXiv: http://arxiv.org/abs/1508.06186v1
dc.identifier.otherScopus: 85015658631
dc.identifier.urihttp://hdl.handle.net/10023/12581
dc.description.abstractWe examine the properties of galaxies in the Galaxies and Mass Assembly (GAMA) survey located in voids with radii >10 h−1 Mpc. Utilizing the GAMA equatorial survey, 592 void galaxies are identified out to z ≈ 0.1 brighter than Mr = −18.4, our magnitude completeness limit. Using the WHα versus [N ii]/Hα (WHAN) line strength diagnostic diagram, we classify their spectra as star forming, AGN, or dominated by old stellar populations. For objects more massive than 5 × 109 M⊙, we identify a sample of 26 void galaxies with old stellar populations classed as passive and retired galaxies in the WHAN diagnostic diagram, else they lack any emission lines in their spectra. When matched to Wide-field Infrared Survey Explorer mid-IR photometry, these passive and retired galaxies exhibit a range of mid-IR colour, with a number of void galaxies exhibiting [4.6] − [12] colours inconsistent with completely quenched stellar populations, with a similar spread in colour seen for a randomly drawn non-void comparison sample. We hypothesize that a number of these galaxies host obscured star formation, else they are star forming outside of their central regions targeted for single-fibre spectroscopy. When matched to a randomly drawn sample of non-void galaxies, the void and non-void galaxies exhibit similar properties in terms of optical and mid-IR colour, morphology, and star formation activity, suggesting comparable mass assembly and quenching histories. A trend in mid-IR [4.6] − [12] colour is seen, such that both void and non-void galaxies with quenched/passive colours <1.5 typically have masses higher than 1010 M⊙, where internally driven processes play an increasingly important role in galaxy evolution.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rights© 2015, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://doi.org/10.1093/mnras/stv1926en
dc.subjectGalaxies: evolutionen
dc.subjectGalaxies: generalen
dc.subjectInfrared: galaxiesen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subject3rd-DASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleGalaxy And Mass Assembly (GAMA) : the bright void galaxy population in the optical and mid-IRen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1093/mnras/stv1926
dc.description.statusPeer revieweden


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