The SAMI Galaxy Survey: The link between angular momentum and optical morphology
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Cortese, L; Fogarty, Lisa M R; Bekki, Kenji; van de Sande, J; Couch, Warrick; Catinella, B; Colless, Matthew; Obreschkow, Danail; Taranu, Dan S; Tescari, Edoardo; Barat, Dilyar; D'Eugenio, Francesco; Ho, I-Ting; Medling, Anne; Sharp, Robert; Sweet, Sarah; Owers, M S
Description
We investigate the relationship between stellar and gas specific angular momentum j, stellar massM* and optical morphology for a sample of 488 galaxies extracted from the Sydney-AAO Multi-object Integral field Galaxy Survey.We find that j, measured within one effective radius, monotonically increases with M* and that, for M* > 109.5 M⊙, the scatter in this relation strongly correlates with optical morphology (i.e. visual classification and Sérsic index). These findings confirm that massive...[Show more]
dc.contributor.author | Cortese, L | |
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dc.contributor.author | Fogarty, Lisa M R | |
dc.contributor.author | Bekki, Kenji | |
dc.contributor.author | van de Sande, J | |
dc.contributor.author | Couch, Warrick | |
dc.contributor.author | Catinella, B | |
dc.contributor.author | Colless, Matthew | |
dc.contributor.author | Obreschkow, Danail | |
dc.contributor.author | Taranu, Dan S | |
dc.contributor.author | Tescari, Edoardo | |
dc.contributor.author | Barat, Dilyar | |
dc.contributor.author | D'Eugenio, Francesco | |
dc.contributor.author | Ho, I-Ting | |
dc.contributor.author | Medling, Anne | |
dc.contributor.author | Sharp, Robert | |
dc.contributor.author | Sweet, Sarah | |
dc.contributor.author | Owers, M S | |
dc.date.accessioned | 2018-11-29T22:53:27Z | |
dc.date.available | 2018-11-29T22:53:27Z | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | http://hdl.handle.net/1885/152479 | |
dc.description.abstract | We investigate the relationship between stellar and gas specific angular momentum j, stellar massM* and optical morphology for a sample of 488 galaxies extracted from the Sydney-AAO Multi-object Integral field Galaxy Survey.We find that j, measured within one effective radius, monotonically increases with M* and that, for M* > 109.5 M⊙, the scatter in this relation strongly correlates with optical morphology (i.e. visual classification and Sérsic index). These findings confirm that massive galaxies of all types lie on a plane relating mass, angular momentum and stellar-light distribution, and suggest that the large-scale morphology of a galaxy is regulated by its mass and dynamical state. We show that the significant scatter in the M*-j relation is accounted for by the fact that, at fixed stellar mass, the contribution of ordered motions to the dynamical support of galaxies varies by at least a factor of 3. Indeed, the stellar spin parameter (quantified via λR) correlates strongly with Sérsic and concentration indices. This correlation is particularly strong once slow rotators are removed from the sample, showing that late-type galaxies and early-type fast rotators form a continuous class of objects in terms of their kinematic properties. | |
dc.format.mimetype | application/pdf | |
dc.publisher | Blackwell Publishing Ltd | |
dc.source | Monthly Notices of the Royal Astronomical Society | |
dc.title | The SAMI Galaxy Survey: The link between angular momentum and optical morphology | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 463 | |
dc.date.issued | 2016 | |
local.identifier.absfor | 020103 - Cosmology and Extragalactic Astronomy | |
local.identifier.ariespublication | a383154xPUB5676 | |
local.type.status | Published Version | |
local.contributor.affiliation | Cortese, L, University of Western Australia | |
local.contributor.affiliation | Fogarty, Lisa M R, University of Sydney | |
local.contributor.affiliation | Bekki, Kenji, University of Western Australia | |
local.contributor.affiliation | van de Sande, J, University of Sydney | |
local.contributor.affiliation | Couch, Warrick, Australian Astronomical Observatory | |
local.contributor.affiliation | Catinella, B, The University of Western Australia | |
local.contributor.affiliation | Colless, Matthew, College of Science, ANU | |
local.contributor.affiliation | Obreschkow, Danail, University of Western Australia | |
local.contributor.affiliation | Taranu, Dan S, University of Western Australia | |
local.contributor.affiliation | Tescari, Edoardo, University of Melbourne | |
local.contributor.affiliation | Barat, Dilyar, College of Science, ANU | |
local.contributor.affiliation | D'Eugenio, Francesco, College of Science, ANU | |
local.contributor.affiliation | Ho, I-Ting, College of Science, ANU | |
local.contributor.affiliation | Medling, Anne, College of Science, ANU | |
local.contributor.affiliation | Sharp, Robert, College of Science, ANU | |
local.contributor.affiliation | Sweet, Sarah, College of Science, ANU | |
local.contributor.affiliation | Owers, M S, Australian Astronomical Observatory | |
local.bibliographicCitation.issue | 1 | |
local.identifier.doi | 10.1093/mnras/stw1891 | |
dc.date.updated | 2018-11-29T07:52:58Z | |
local.identifier.scopusID | 2-s2.0-85015668174 | |
local.identifier.thomsonID | 000386464900013 | |
dcterms.accessRights | Open Access | |
Collections | ANU Research Publications |
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