The SAMI Galaxy Survey: Kinematic Alignments of Early-type Galaxies in A119 and A168
We investigate the kinematic alignments of luminous early-type galaxies (M-r <= -19.5 mag) in A119 and A168 using the kinematic position angles (PA(kin)) from the Sydney-AAO Multi-object Integral-field spectrograph (SAMI) survey data, motivated by the implication of the galaxy spin alignment in a...
Published in: | The Astrophysical Journal |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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Format: | Article in Journal/Newspaper |
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American Astronomical Society
2019
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Online Access: | http://hdl.handle.net/1959.3/449109 https://doi.org/10.3847/1538-4357/ab0d90 |
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ftswinburne:tle:516e6e30-f0f1-4acf-a1dc-d861e4f652a1:28f49f06-0da8-44be-9edc-ad1dd0a9c582:1 |
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ftswinburne:tle:516e6e30-f0f1-4acf-a1dc-d861e4f652a1:28f49f06-0da8-44be-9edc-ad1dd0a9c582:1 2023-05-15T18:11:10+02:00 The SAMI Galaxy Survey: Kinematic Alignments of Early-type Galaxies in A119 and A168 Jeong, Hyunjin Kim, Suk Owers, Matt S. Joo, Seok-Joo Kim, Hak-Sub Lee, Woong Lee, Youngdae Sande, Jesse van de Lee, Jaehyun Yi, Sukyoung K. Croom, Scott M. Bryant, Julia J. Rey, Soo-Chang Brough, Sarah Oh, Sree Scott, Nicholas Tonini, Chiara Medling, Anne M. Sweet, Sarah M. Bland-Hawthorn, Joss Konstantopoulos, Iraklis S. Lawrence, J. S. Richards, Samuel N. Swinburne University of Technology 2019 http://hdl.handle.net/1959.3/449109 https://doi.org/10.3847/1538-4357/ab0d90 unknown American Astronomical Society http://purl.org/au-research/grants/arc/FT140100255 http://purl.org/au-research/grants/arc/FL140100278 http://purl.org/au-research/grants/arc/FT180100231 http://purl.org/au-research/grants/arc/FT140101166 http://purl.org/au-research/grants/arc/CE170100013 http://purl.org/au-research/grants/arc/CE1101020 http://hdl.handle.net/1959.3/449109 https://doi.org/10.3847/1538-4357/ab0d90 Copyright © 2019. The American Astronomical Society. All rights reserved. The Astrophysical Journal, Vol. 875, no. 1 (Apr 2019), article no. 60 Journal article 2019 ftswinburne https://doi.org/10.3847/1538-4357/ab0d90 2019-09-07T21:18:21Z We investigate the kinematic alignments of luminous early-type galaxies (M-r <= -19.5 mag) in A119 and A168 using the kinematic position angles (PA(kin)) from the Sydney-AAO Multi-object Integral-field spectrograph (SAMI) survey data, motivated by the implication of the galaxy spin alignment in a cosmological context. To increase the size of our sample for statistical significance, we also use the photometric position angles (PA(phot) ) for galaxies that have not been observed by SAMI, if their ellipticities are higher than 0.15. Our luminous early-type galaxies tend to prefer the specific position angles in both clusters, confirming the results of Kim et al., who recently found the kinematic alignment of early-type galaxies in the Virgo cluster based on the ATLAS(3D) integral-field spectroscopic data. This alignment signal is more prominent for galaxies in the projected phase-space regions dominated by infalling populations. Furthermore, the alignment angles are closely related to the directions of the filamentary structures around clusters. The results lead us to conclude that many cluster early-type galaxies are likely to be accreted along filaments while maintaining their spin axes, which are predetermined before cluster infall. Article in Journal/Newspaper sami Swinburne University of Technology: Swinburne Research Bank The Astrophysical Journal 875 1 60 |
institution |
Open Polar |
collection |
Swinburne University of Technology: Swinburne Research Bank |
op_collection_id |
ftswinburne |
language |
unknown |
description |
We investigate the kinematic alignments of luminous early-type galaxies (M-r <= -19.5 mag) in A119 and A168 using the kinematic position angles (PA(kin)) from the Sydney-AAO Multi-object Integral-field spectrograph (SAMI) survey data, motivated by the implication of the galaxy spin alignment in a cosmological context. To increase the size of our sample for statistical significance, we also use the photometric position angles (PA(phot) ) for galaxies that have not been observed by SAMI, if their ellipticities are higher than 0.15. Our luminous early-type galaxies tend to prefer the specific position angles in both clusters, confirming the results of Kim et al., who recently found the kinematic alignment of early-type galaxies in the Virgo cluster based on the ATLAS(3D) integral-field spectroscopic data. This alignment signal is more prominent for galaxies in the projected phase-space regions dominated by infalling populations. Furthermore, the alignment angles are closely related to the directions of the filamentary structures around clusters. The results lead us to conclude that many cluster early-type galaxies are likely to be accreted along filaments while maintaining their spin axes, which are predetermined before cluster infall. |
author2 |
Swinburne University of Technology |
format |
Article in Journal/Newspaper |
author |
Jeong, Hyunjin Kim, Suk Owers, Matt S. Joo, Seok-Joo Kim, Hak-Sub Lee, Woong Lee, Youngdae Sande, Jesse van de Lee, Jaehyun Yi, Sukyoung K. Croom, Scott M. Bryant, Julia J. Rey, Soo-Chang Brough, Sarah Oh, Sree Scott, Nicholas Tonini, Chiara Medling, Anne M. Sweet, Sarah M. Bland-Hawthorn, Joss Konstantopoulos, Iraklis S. Lawrence, J. S. Richards, Samuel N. |
spellingShingle |
Jeong, Hyunjin Kim, Suk Owers, Matt S. Joo, Seok-Joo Kim, Hak-Sub Lee, Woong Lee, Youngdae Sande, Jesse van de Lee, Jaehyun Yi, Sukyoung K. Croom, Scott M. Bryant, Julia J. Rey, Soo-Chang Brough, Sarah Oh, Sree Scott, Nicholas Tonini, Chiara Medling, Anne M. Sweet, Sarah M. Bland-Hawthorn, Joss Konstantopoulos, Iraklis S. Lawrence, J. S. Richards, Samuel N. The SAMI Galaxy Survey: Kinematic Alignments of Early-type Galaxies in A119 and A168 |
author_facet |
Jeong, Hyunjin Kim, Suk Owers, Matt S. Joo, Seok-Joo Kim, Hak-Sub Lee, Woong Lee, Youngdae Sande, Jesse van de Lee, Jaehyun Yi, Sukyoung K. Croom, Scott M. Bryant, Julia J. Rey, Soo-Chang Brough, Sarah Oh, Sree Scott, Nicholas Tonini, Chiara Medling, Anne M. Sweet, Sarah M. Bland-Hawthorn, Joss Konstantopoulos, Iraklis S. Lawrence, J. S. Richards, Samuel N. |
author_sort |
Jeong, Hyunjin |
title |
The SAMI Galaxy Survey: Kinematic Alignments of Early-type Galaxies in A119 and A168 |
title_short |
The SAMI Galaxy Survey: Kinematic Alignments of Early-type Galaxies in A119 and A168 |
title_full |
The SAMI Galaxy Survey: Kinematic Alignments of Early-type Galaxies in A119 and A168 |
title_fullStr |
The SAMI Galaxy Survey: Kinematic Alignments of Early-type Galaxies in A119 and A168 |
title_full_unstemmed |
The SAMI Galaxy Survey: Kinematic Alignments of Early-type Galaxies in A119 and A168 |
title_sort |
sami galaxy survey: kinematic alignments of early-type galaxies in a119 and a168 |
publisher |
American Astronomical Society |
publishDate |
2019 |
url |
http://hdl.handle.net/1959.3/449109 https://doi.org/10.3847/1538-4357/ab0d90 |
genre |
sami |
genre_facet |
sami |
op_source |
The Astrophysical Journal, Vol. 875, no. 1 (Apr 2019), article no. 60 |
op_relation |
http://purl.org/au-research/grants/arc/FT140100255 http://purl.org/au-research/grants/arc/FL140100278 http://purl.org/au-research/grants/arc/FT180100231 http://purl.org/au-research/grants/arc/FT140101166 http://purl.org/au-research/grants/arc/CE170100013 http://purl.org/au-research/grants/arc/CE1101020 http://hdl.handle.net/1959.3/449109 https://doi.org/10.3847/1538-4357/ab0d90 |
op_rights |
Copyright © 2019. The American Astronomical Society. All rights reserved. |
op_doi |
https://doi.org/10.3847/1538-4357/ab0d90 |
container_title |
The Astrophysical Journal |
container_volume |
875 |
container_issue |
1 |
container_start_page |
60 |
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1766183866281754624 |