The SAMI Galaxy Survey:unveiling the nature of kinematically offset active Galactic nuclei
We have observed two kinematically offset active galactic nuclei (AGN), whose ionized gas is at a different line-of-sight velocity to their host galaxies, with the Sydney-AAO Multi-object Integral field spectrograph (SAMI). One of the galaxies shows gas kinematics very different from the stellar kin...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Online Access: | https://researchers.mq.edu.au/en/publications/c91f88f8-c6ee-498c-be2a-068c19f7648c https://doi.org/10.1093/mnras/stv1121 https://research-management.mq.edu.au/ws/files/62280323/Publisher%20version.pdf http://www.scopus.com/inward/record.url?scp=84942090656&partnerID=8YFLogxK http://purl.org/au-research/grants/arc/CE1101020 |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/c91f88f8-c6ee-498c-be2a-068c19f7648c 2023-05-15T18:11:27+02:00 The SAMI Galaxy Survey:unveiling the nature of kinematically offset active Galactic nuclei Allen, J. T. Schaefer, A. L. Scott, N. Fogarty, L. M R Ho, I. T. Medling, A. M. Leslie, S. K. Bland-Hawthorn, J. Bryant, J. J. Croom, S. M. Goodwin, M. Green, A. W. Konstantopoulos, I. S. Lawrence, J. S. Owers, M. S. Richards, S. N. Sharp, R. 2015-08-11 application/pdf https://researchers.mq.edu.au/en/publications/c91f88f8-c6ee-498c-be2a-068c19f7648c https://doi.org/10.1093/mnras/stv1121 https://research-management.mq.edu.au/ws/files/62280323/Publisher%20version.pdf http://www.scopus.com/inward/record.url?scp=84942090656&partnerID=8YFLogxK http://purl.org/au-research/grants/arc/CE1101020 eng eng info:eu-repo/semantics/openAccess Allen , J T , Schaefer , A L , Scott , N , Fogarty , L M R , Ho , I T , Medling , A M , Leslie , S K , Bland-Hawthorn , J , Bryant , J J , Croom , S M , Goodwin , M , Green , A W , Konstantopoulos , I S , Lawrence , J S , Owers , M S , Richards , S N & Sharp , R 2015 , ' The SAMI Galaxy Survey : unveiling the nature of kinematically offset active Galactic nuclei ' , Monthly Notices of the Royal Astronomical Society , vol. 451 , no. 3 , pp. 2780-2792 . https://doi.org/10.1093/mnras/stv1121 galaxies: evolution galaxies: kinematics and dynamics galaxies: structure article 2015 ftmacquarieunicr https://doi.org/10.1093/mnras/stv1121 2022-11-06T06:37:58Z We have observed two kinematically offset active galactic nuclei (AGN), whose ionized gas is at a different line-of-sight velocity to their host galaxies, with the Sydney-AAO Multi-object Integral field spectrograph (SAMI). One of the galaxies shows gas kinematics very different from the stellar kinematics, indicating a recent merger or accretion event. We demonstrate that the star formation associated with this event was triggered within the last 100 Myr. The other galaxy shows simple disc rotation in both gas and stellar kinematics, aligned with each other, but in the central region has signatures of an outflow driven by the AGN. Other than the outflow, neither galaxy shows any discontinuity in the ionized gas kinematics at the galaxy's centre. We conclude that in these two cases there is no direct evidence of the AGN being in a supermassive black hole binary system. Our study demonstrates that selecting kinematically offset AGN from single-fibre spectroscopy provides, by definition, samples of kinematically peculiar objects, but integral field spectroscopy or other data are required to determine their true nature. Article in Journal/Newspaper sami Macquarie University Research Portal Monthly Notices of the Royal Astronomical Society 451 3 2780 2792 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
galaxies: evolution galaxies: kinematics and dynamics galaxies: structure |
spellingShingle |
galaxies: evolution galaxies: kinematics and dynamics galaxies: structure Allen, J. T. Schaefer, A. L. Scott, N. Fogarty, L. M R Ho, I. T. Medling, A. M. Leslie, S. K. Bland-Hawthorn, J. Bryant, J. J. Croom, S. M. Goodwin, M. Green, A. W. Konstantopoulos, I. S. Lawrence, J. S. Owers, M. S. Richards, S. N. Sharp, R. The SAMI Galaxy Survey:unveiling the nature of kinematically offset active Galactic nuclei |
topic_facet |
galaxies: evolution galaxies: kinematics and dynamics galaxies: structure |
description |
We have observed two kinematically offset active galactic nuclei (AGN), whose ionized gas is at a different line-of-sight velocity to their host galaxies, with the Sydney-AAO Multi-object Integral field spectrograph (SAMI). One of the galaxies shows gas kinematics very different from the stellar kinematics, indicating a recent merger or accretion event. We demonstrate that the star formation associated with this event was triggered within the last 100 Myr. The other galaxy shows simple disc rotation in both gas and stellar kinematics, aligned with each other, but in the central region has signatures of an outflow driven by the AGN. Other than the outflow, neither galaxy shows any discontinuity in the ionized gas kinematics at the galaxy's centre. We conclude that in these two cases there is no direct evidence of the AGN being in a supermassive black hole binary system. Our study demonstrates that selecting kinematically offset AGN from single-fibre spectroscopy provides, by definition, samples of kinematically peculiar objects, but integral field spectroscopy or other data are required to determine their true nature. |
format |
Article in Journal/Newspaper |
author |
Allen, J. T. Schaefer, A. L. Scott, N. Fogarty, L. M R Ho, I. T. Medling, A. M. Leslie, S. K. Bland-Hawthorn, J. Bryant, J. J. Croom, S. M. Goodwin, M. Green, A. W. Konstantopoulos, I. S. Lawrence, J. S. Owers, M. S. Richards, S. N. Sharp, R. |
author_facet |
Allen, J. T. Schaefer, A. L. Scott, N. Fogarty, L. M R Ho, I. T. Medling, A. M. Leslie, S. K. Bland-Hawthorn, J. Bryant, J. J. Croom, S. M. Goodwin, M. Green, A. W. Konstantopoulos, I. S. Lawrence, J. S. Owers, M. S. Richards, S. N. Sharp, R. |
author_sort |
Allen, J. T. |
title |
The SAMI Galaxy Survey:unveiling the nature of kinematically offset active Galactic nuclei |
title_short |
The SAMI Galaxy Survey:unveiling the nature of kinematically offset active Galactic nuclei |
title_full |
The SAMI Galaxy Survey:unveiling the nature of kinematically offset active Galactic nuclei |
title_fullStr |
The SAMI Galaxy Survey:unveiling the nature of kinematically offset active Galactic nuclei |
title_full_unstemmed |
The SAMI Galaxy Survey:unveiling the nature of kinematically offset active Galactic nuclei |
title_sort |
sami galaxy survey:unveiling the nature of kinematically offset active galactic nuclei |
publishDate |
2015 |
url |
https://researchers.mq.edu.au/en/publications/c91f88f8-c6ee-498c-be2a-068c19f7648c https://doi.org/10.1093/mnras/stv1121 https://research-management.mq.edu.au/ws/files/62280323/Publisher%20version.pdf http://www.scopus.com/inward/record.url?scp=84942090656&partnerID=8YFLogxK http://purl.org/au-research/grants/arc/CE1101020 |
genre |
sami |
genre_facet |
sami |
op_source |
Allen , J T , Schaefer , A L , Scott , N , Fogarty , L M R , Ho , I T , Medling , A M , Leslie , S K , Bland-Hawthorn , J , Bryant , J J , Croom , S M , Goodwin , M , Green , A W , Konstantopoulos , I S , Lawrence , J S , Owers , M S , Richards , S N & Sharp , R 2015 , ' The SAMI Galaxy Survey : unveiling the nature of kinematically offset active Galactic nuclei ' , Monthly Notices of the Royal Astronomical Society , vol. 451 , no. 3 , pp. 2780-2792 . https://doi.org/10.1093/mnras/stv1121 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/mnras/stv1121 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
451 |
container_issue |
3 |
container_start_page |
2780 |
op_container_end_page |
2792 |
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1766184111558361088 |