Galaxy and Mass Assembly (GAMA): variation in galaxy structure across the green valley

被引：25

作者：

Kelvin, Lee S. ^{[1
]}

Bremer, Malcolm N. ^{[2
]}

Phillipps, Steven ^{[2
]}

James, Philip A. ^{[1
]}

Davies, Luke J. M. ^{[3
]}

De Propris, Roberto ^{[4
]}

Moffett, Amanda J. ^{[5
]}

Percival, Susan M. ^{[1
]}

Baldry, Ivan K. ^{[1
]}

Collins, Chris A. ^{[1
]}

Alpaslan, Mehmet ^{[6
]}

Bland-Hawthorn, Joss ^{[7
]}

Brough, Sarah ^{[8
]}

Cluver, Michelle ^{[9
]}

Driver, Simon P. ^{[3
,10
]}

Hashemizadeh, Abdolhosein ^{[3
]}

Holwerda, Benne W. ^{[11
]}

Laine, Jarkko ^{[12
]}

Lara-Lopez, Maritza A. ^{[13
]}

Liske, Jochen ^{[12
]}

Maciejewski, Witold ^{[1
]}

Napolitano, Nicola R. ^{[14
]}

Penny, Samantha J. ^{[15
]}

Popescu, Cristina C. ^{[16
,17
]}

Sansom, Anne E. ^{[16
]}

Sutherland, Will ^{[18
]}

Taylor, Edward N. ^{[19
]}

van Kampen, Eelco ^{[20
]}

Wang, Lingyu ^{[21
,22
]}

机构：

[1] Liverpool John Moores Univ, Astrophys Res Inst, IC2,Liverpool Sci Pk,146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England

[2] Univ Bristol, HH Wills Phys Lab, Astrophys Grp, Tyndall Ave, Bristol BS8 1TL, Avon, England

[3] Univ Western Australia, Int Ctr Radio Astron Res, 35 Stirling Highway, Crawley, WA 6009, Australia

[4] Univ Turku, Finnish Ctr Astron ESO FINCA, Vaisalantie 20, FI-21500 Piikkio, Finland

[5] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37240 USA

[6] NYU, Dept Phys, Ctr Cosmol & Particle Phys, 726 Broadway, New York, NY 10003 USA

[7] Univ Sydney, Sch Phys A28, Sydney Inst Astron, Sydney, NSW 2006, Australia

[8] Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia

[9] Univ Western Cape, Dept Phys & Astron, Robert Sobukwe Rd, ZA-7535 Bellville, South Africa

[10] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

[11] Univ Louisville, Dept Phys & Astron, 102 Nat Sci Bldg, Louisville, KY 40292 USA

[12] Univ Hamburg, Hamburger Sternwarte, Gojenbergsweg 112, D-21029 Hamburg, Germany

[13] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark

[14] INAF Osservatorio Astron Capodimonte, Salita Moiariello 16, I-80131 Naples, Italy

[15] Univ Portsmouth, Inst Cosmol & Gravitat, Burnaby Rd, Portsmouth PO1 3FX, Hants, England

[16] Univ Cent Lancashire, Sch Phys Sci & Comp, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England

[17] Romanian Acad, Astron Inst, Str Cutitul Argint 5, Bucharest, Romania

[18] Queen Mary Univ London, Sch Phys & Astron, Mile End Rd, London E1 4NS, England

[19] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia

[20] ESO, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[21] SRON Netherlands Inst Space Res, Landleven 12, NL-9747 AD Groningen, Netherlands

[22] Univ Groningen, Kapteyn Astron Inst, Postbus 800, NL-9700 AV Groningen, Netherlands

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2018年 / 477卷 / 03期

关键词：

galaxies: elliptical and lenticular; cD; galaxies: evolution; galaxies: spiral; galaxies: star formation; galaxies: statistics; galaxies: structure; DIGITAL-SKY-SURVEY; COLOR-MAGNITUDE DIAGRAM; STAR-FORMATION RATES; N-BODY MODEL; STELLAR MASS; DATA RELEASE; SECULAR EVOLUTION; ELLIPTIC GALAXIES; SPIRAL GALAXIES; BARRED GALAXIES;

D O I：

10.1093/mnras/sty933

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using a sample of 472 local Universe (z < 0.06) galaxies in the stellar mass range 10.25 < logM(star)/M-circle dot < 10.75, we explore the variation in galaxy structure as a function of morphology and galaxy colour. Our sample of galaxies is subdivided into red, green, and blue colour groups and into elliptical and non-elliptical (disk-type) morphologies. Using Kilo-Degree Survey (KiDS) and Visible and Infrared Survey Telescope for Astronomy (VISTA) Kilo-Degree Infrared Galaxy Survey (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 (2.3 sigma) and lenses (2.9 sigma) in disk-type galaxies as they transition across the green valley. Combined, this implies a joint ring/lens green valley surplus significance of 3.3 sigma relative to equivalent disk-types within either the blue cloud or the red sequence. We recover a bar fraction of similar to 44 per cent 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 similar to 20-30 percentage points relative to their unbarred counterparts, regardless of colour. Additionally, green valley disk-type galaxies with a bar exhibit a significant 3.0 sigma 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.

引用

页码：4116 / 4130

页数：15

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