The SAMI Galaxy Survey: The link between angular momentum and optical morphology
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 increase...
Published in: | Monthly Notices of the Royal Astronomical Society |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Oxford University Press (OUP)
2016
|
Subjects: | |
Online Access: | http://hdl.handle.net/1959.4/unsworks_47233 https://doi.org/10.1093/mnras/stw1891 |
id |
ftunswworks:oai:unsworks.library.unsw.edu.au:1959.4/unsworks_47233 |
---|---|
record_format |
openpolar |
spelling |
ftunswworks:oai:unsworks.library.unsw.edu.au:1959.4/unsworks_47233 2024-05-12T08:10:35+00:00 The SAMI Galaxy Survey: The link between angular momentum and optical morphology Cortese, L Fogarty, LMR Bekki, K van de Sande, J Couch, W Catinella, B Colless, M Obreschkow, D Taranu, D Tescari, E Barat, D Bland-Hawthorn, J Bloom, J Bryant, JJ Cluver, M Croom, SM Drinkwater, MJ d'Eugenio, F Konstantopoulos, IS Lopez-Sanchez, A Mahajan, S Scott, N Tonini, C Wong, OI Allen, JT Brough, S Goodwin, M Green, AW Ho, IT Kelvin, LS Lawrence, JS Lorente, NPF Medling, AM Owers, MS Richards, S Sharp, R Sweet, SM 2016-11-21 http://hdl.handle.net/1959.4/unsworks_47233 https://doi.org/10.1093/mnras/stw1891 unknown Oxford University Press (OUP) http://purl.org/au-research/grants/arc/FT140101166 http://hdl.handle.net/1959.4/unsworks_47233 https://doi.org/10.1093/mnras/stw1891 metadata only access http://purl.org/coar/access_right/c_14cb CC-BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/ urn:ISSN:0035-8711 urn:ISSN:1365-2966 Monthly Notices of the Royal Astronomical Society, 463, 1, 170-184 anzsrc-for: 0201 Astronomical and Space Sciences journal article http://purl.org/coar/resource_type/c_6501 2016 ftunswworks https://doi.org/10.1093/mnras/stw1891 2024-04-17T15:34:08Z 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. Article in Journal/Newspaper sami UNSW Sydney (The University of New South Wales): UNSWorks Monthly Notices of the Royal Astronomical Society 463 1 170 184 |
institution |
Open Polar |
collection |
UNSW Sydney (The University of New South Wales): UNSWorks |
op_collection_id |
ftunswworks |
language |
unknown |
topic |
anzsrc-for: 0201 Astronomical and Space Sciences |
spellingShingle |
anzsrc-for: 0201 Astronomical and Space Sciences Cortese, L Fogarty, LMR Bekki, K van de Sande, J Couch, W Catinella, B Colless, M Obreschkow, D Taranu, D Tescari, E Barat, D Bland-Hawthorn, J Bloom, J Bryant, JJ Cluver, M Croom, SM Drinkwater, MJ d'Eugenio, F Konstantopoulos, IS Lopez-Sanchez, A Mahajan, S Scott, N Tonini, C Wong, OI Allen, JT Brough, S Goodwin, M Green, AW Ho, IT Kelvin, LS Lawrence, JS Lorente, NPF Medling, AM Owers, MS Richards, S Sharp, R Sweet, SM The SAMI Galaxy Survey: The link between angular momentum and optical morphology |
topic_facet |
anzsrc-for: 0201 Astronomical and Space Sciences |
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 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. |
format |
Article in Journal/Newspaper |
author |
Cortese, L Fogarty, LMR Bekki, K van de Sande, J Couch, W Catinella, B Colless, M Obreschkow, D Taranu, D Tescari, E Barat, D Bland-Hawthorn, J Bloom, J Bryant, JJ Cluver, M Croom, SM Drinkwater, MJ d'Eugenio, F Konstantopoulos, IS Lopez-Sanchez, A Mahajan, S Scott, N Tonini, C Wong, OI Allen, JT Brough, S Goodwin, M Green, AW Ho, IT Kelvin, LS Lawrence, JS Lorente, NPF Medling, AM Owers, MS Richards, S Sharp, R Sweet, SM |
author_facet |
Cortese, L Fogarty, LMR Bekki, K van de Sande, J Couch, W Catinella, B Colless, M Obreschkow, D Taranu, D Tescari, E Barat, D Bland-Hawthorn, J Bloom, J Bryant, JJ Cluver, M Croom, SM Drinkwater, MJ d'Eugenio, F Konstantopoulos, IS Lopez-Sanchez, A Mahajan, S Scott, N Tonini, C Wong, OI Allen, JT Brough, S Goodwin, M Green, AW Ho, IT Kelvin, LS Lawrence, JS Lorente, NPF Medling, AM Owers, MS Richards, S Sharp, R Sweet, SM |
author_sort |
Cortese, L |
title |
The SAMI Galaxy Survey: The link between angular momentum and optical morphology |
title_short |
The SAMI Galaxy Survey: The link between angular momentum and optical morphology |
title_full |
The SAMI Galaxy Survey: The link between angular momentum and optical morphology |
title_fullStr |
The SAMI Galaxy Survey: The link between angular momentum and optical morphology |
title_full_unstemmed |
The SAMI Galaxy Survey: The link between angular momentum and optical morphology |
title_sort |
sami galaxy survey: the link between angular momentum and optical morphology |
publisher |
Oxford University Press (OUP) |
publishDate |
2016 |
url |
http://hdl.handle.net/1959.4/unsworks_47233 https://doi.org/10.1093/mnras/stw1891 |
genre |
sami |
genre_facet |
sami |
op_source |
urn:ISSN:0035-8711 urn:ISSN:1365-2966 Monthly Notices of the Royal Astronomical Society, 463, 1, 170-184 |
op_relation |
http://purl.org/au-research/grants/arc/FT140101166 http://hdl.handle.net/1959.4/unsworks_47233 https://doi.org/10.1093/mnras/stw1891 |
op_rights |
metadata only access http://purl.org/coar/access_right/c_14cb CC-BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1093/mnras/stw1891 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
463 |
container_issue |
1 |
container_start_page |
170 |
op_container_end_page |
184 |
_version_ |
1798854059812192256 |