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Galaxy and Mass Assembly (GAMA) : variation in galaxy structure across the green valley
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dc.contributor.author | Kelvin, Lee S. | |
dc.contributor.author | Bremer, Malcolm N. | |
dc.contributor.author | Phillipps, Steven | |
dc.contributor.author | James, Philip A. | |
dc.contributor.author | Davies, Luke J. M. | |
dc.contributor.author | Propris, Roberto De | |
dc.contributor.author | Moffett, Amanda J. | |
dc.contributor.author | Percival, Susan M. | |
dc.contributor.author | Baldry, Ivan K. | |
dc.contributor.author | Collins, Chris A. | |
dc.contributor.author | Alpaslan, Mehmet | |
dc.contributor.author | Bland-Hawthorn, Joss | |
dc.contributor.author | Brough, Sarah | |
dc.contributor.author | Cluver, Michelle | |
dc.contributor.author | Driver, Simon P. | |
dc.contributor.author | Hashemizadeh, Abdolhosein | |
dc.contributor.author | Holwerda, Benne W. | |
dc.contributor.author | Laine, Jarkko | |
dc.contributor.author | Lara-Lopez, Maritza A. | |
dc.contributor.author | Liske, Jochen | |
dc.contributor.author | Maciejewski, Witold | |
dc.contributor.author | Napolitano, Nicola R. | |
dc.contributor.author | Penny, Samantha J. | |
dc.contributor.author | Popescu, Cristina C. | |
dc.contributor.author | Sansom, Anne E. | |
dc.contributor.author | Sutherland, Will | |
dc.contributor.author | Taylor, Edward N. | |
dc.contributor.author | Kampen, Eelco van | |
dc.contributor.author | Wang, Lingyu | |
dc.date.accessioned | 2018-04-27T09:30:14Z | |
dc.date.available | 2018-04-27T09:30:14Z | |
dc.date.issued | 2018-07 | |
dc.identifier | 252910754 | |
dc.identifier | b0489c4a-608c-4e6e-91df-662231be0410 | |
dc.identifier | 85047936073 | |
dc.identifier | 000433893700090 | |
dc.identifier.citation | Kelvin , L S , Bremer , M N , Phillipps , S , James , P A , Davies , L J M , Propris , R D , Moffett , A J , Percival , S M , Baldry , I K , Collins , C A , Alpaslan , M , Bland-Hawthorn , J , Brough , S , Cluver , M , Driver , S P , Hashemizadeh , A , Holwerda , B W , Laine , J , Lara-Lopez , M A , Liske , J , Maciejewski , W , Napolitano , N R , Penny , S J , Popescu , C C , Sansom , A E , Sutherland , W , Taylor , E N , Kampen , E V & Wang , L 2018 , ' Galaxy and Mass Assembly (GAMA) : variation in galaxy structure across the green valley ' , Monthly Notices of the Royal Astronomical Society , vol. 477 , no. 3 , pp. 4116-4130 . https://doi.org/10.1093/mnras/sty933 | en |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/1804.04470v1 | |
dc.identifier.uri | https://hdl.handle.net/10023/13246 | |
dc.description.abstract | Using a sample of 472 local Universe (z < 0.06) galaxies in the stellar mass range 10. 25 < log M*/Mʘ < 10.75, we explore the variation in galaxy structure as a function of morphology and galaxy colour. Our sample of galaxies is sub-divided into red, green and blue colour groups and into elliptical and non-elliptical (disk-type) morphologies. Using KiDS and VIKING derived postage stamp images, a group of eight volunteers visually classified bars, rings, morphological lenses, tidal streams, shells and signs of merger activity for all systems. We find a significant surplus of rings(2.3σ) and lenses (2.9σ) in disk-type galaxies as they transition across the green valley. Combined, this implies a joint ring/lens green valley surplus significance of 3.3σ relative to equivalent disk-types within either the blue cloud or the red sequence. We recover a bar fraction of ∼44% which remains flat with colour, however, we find that the presence of a bar acts to modulate the incidence of rings and (to a lesser extent) lenses, with rings in barred disk-type galaxies more common by ∼ 20−30 percentage points relative to their unbarred counterparts, regardless of colour. Additionally, green valley disk-type galaxies with a bar exhibit a significant 3.0σ surplus of lenses relative to their blue/red analogues. The existence of such structures rules out violent transformative events as the primary end-of-life evolutionary mechanism, with a more passive scenario the favoured candidate for the majority of galaxies rapidly transitioning across the green valley. | |
dc.format.extent | 9240870 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | en |
dc.subject | Galaxies: elliptical and lenticular, cD | en |
dc.subject | Galaxies: spiral | en |
dc.subject | Galaxies: evolution | en |
dc.subject | Galaxies: star formation | en |
dc.subject | Galaxies: statistics | en |
dc.subject | Galaxies: structure | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | 3rd-DAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | Galaxy and Mass Assembly (GAMA) : variation in galaxy structure across the green valley | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | 10.1093/mnras/sty933 | |
dc.description.status | Peer reviewed | en |
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