The SAMI Galaxy Survey:extraplanar gas, Galactic winds and their association with star formation history
We investigate a sample of 40 local, main-sequence, edge-on disc galaxies using integral field spectroscopy with the Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey to understand the link between properties of the extraplanar gas and their host galaxies. The kinematics prope...
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Online Access: | https://researchers.mq.edu.au/en/publications/9e827cf1-843b-442f-9627-153da015f160 https://doi.org/10.1093/mnras/stw017 https://research-management.mq.edu.au/ws/files/62253560/Publisher%20version.pdf http://www.scopus.com/inward/record.url?scp=84963611545&partnerID=8YFLogxK http://purl.org/au-research/grants/arc/CE1101020 |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/9e827cf1-843b-442f-9627-153da015f160 2024-06-23T07:56:32+00:00 The SAMI Galaxy Survey:extraplanar gas, Galactic winds and their association with star formation history Ho, I. Ting Medling, Anne M. Bland-Hawthorn, Joss Groves, Brent Kewley, Lisa J. Kobayashi, Chiaki Dopita, Michael A. Leslie, Sarah K. Sharp, Rob Allen, James T. Bourne, Nathan Bryant, Julia J. Cortese, Luca Croom, Scott M. Dunne, Loretta Fogarty, L. M.R. Goodwin, Michael Green, Andy W. Konstantopoulos, Iraklis S. Lawrence, Jon S. Lorente, Nuria P.F. Owers, Matt S. Richards, Samuel Sweet, Sarah M. Tescari, Edoardo Valiante, Elisabetta 2016-04-01 application/pdf https://researchers.mq.edu.au/en/publications/9e827cf1-843b-442f-9627-153da015f160 https://doi.org/10.1093/mnras/stw017 https://research-management.mq.edu.au/ws/files/62253560/Publisher%20version.pdf http://www.scopus.com/inward/record.url?scp=84963611545&partnerID=8YFLogxK http://purl.org/au-research/grants/arc/CE1101020 eng eng info:eu-repo/semantics/openAccess Ho , I T , Medling , A M , Bland-Hawthorn , J , Groves , B , Kewley , L J , Kobayashi , C , Dopita , M A , Leslie , S K , Sharp , R , Allen , J T , Bourne , N , Bryant , J J , Cortese , L , Croom , S M , Dunne , L , Fogarty , L M R , Goodwin , M , Green , A W , Konstantopoulos , I S , Lawrence , J S , Lorente , N P F , Owers , M S , Richards , S , Sweet , S M , Tescari , E & Valiante , E 2016 , ' The SAMI Galaxy Survey : extraplanar gas, Galactic winds and their association with star formation history ' , Monthly Notices of the Royal Astronomical Society , vol. 457 , no. 2 , pp. 1257-1278 . https://doi.org/10.1093/mnras/stw017 article 2016 ftmacquarieunicr https://doi.org/10.1093/mnras/stw017 2024-06-05T23:47:47Z We investigate a sample of 40 local, main-sequence, edge-on disc galaxies using integral field spectroscopy with the Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey to understand the link between properties of the extraplanar gas and their host galaxies. The kinematics properties of the extraplanar gas, including velocity asymmetries and increased dispersion, are used to differentiate galaxies hosting large-scale galactic winds from those dominated by the extended diffuse ionized gas. We find rather that a spectrum of diffuse gas-dominated to wind-dominated galaxies exist. The wind-dominated galaxies span a wide range of star formation rates (SFRs; -1 ≲ log (SFR/M ⊙ yr -1 ) ≲ 0.5) across the whole stellar mass range of the sample (8.5 ≲ log (M * /M ⊙ ) ≲ 11). The wind galaxies also span a wide range in SFR surface densities (10 -3 -10 -1.5 M ⊙ yr -1 kpc -2 ) that is much lower than the canonical threshold of 0.1M ⊙ yr -1 kpc -2 . The wind galaxies on average have higher SFR surface densities and higher Hδ A values than those without strong wind signatures. The enhanced Hδ A indicates that bursts of star formation in the recent past are necessary for driving large-scale galactic winds. We demonstrate with Sloan Digital Sky Survey data that galaxies with high SFR surface density have experienced bursts of star formation in the recent past. Our results imply that the galactic winds revealed in our study are indeed driven by bursts of star formation, and thus probing star formation in the time domain is crucial for finding and understanding galactic winds. Article in Journal/Newspaper sami Macquarie University Research Portal Monthly Notices of the Royal Astronomical Society 457 2 1257 1278 |
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Macquarie University Research Portal |
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ftmacquarieunicr |
language |
English |
description |
We investigate a sample of 40 local, main-sequence, edge-on disc galaxies using integral field spectroscopy with the Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey to understand the link between properties of the extraplanar gas and their host galaxies. The kinematics properties of the extraplanar gas, including velocity asymmetries and increased dispersion, are used to differentiate galaxies hosting large-scale galactic winds from those dominated by the extended diffuse ionized gas. We find rather that a spectrum of diffuse gas-dominated to wind-dominated galaxies exist. The wind-dominated galaxies span a wide range of star formation rates (SFRs; -1 ≲ log (SFR/M ⊙ yr -1 ) ≲ 0.5) across the whole stellar mass range of the sample (8.5 ≲ log (M * /M ⊙ ) ≲ 11). The wind galaxies also span a wide range in SFR surface densities (10 -3 -10 -1.5 M ⊙ yr -1 kpc -2 ) that is much lower than the canonical threshold of 0.1M ⊙ yr -1 kpc -2 . The wind galaxies on average have higher SFR surface densities and higher Hδ A values than those without strong wind signatures. The enhanced Hδ A indicates that bursts of star formation in the recent past are necessary for driving large-scale galactic winds. We demonstrate with Sloan Digital Sky Survey data that galaxies with high SFR surface density have experienced bursts of star formation in the recent past. Our results imply that the galactic winds revealed in our study are indeed driven by bursts of star formation, and thus probing star formation in the time domain is crucial for finding and understanding galactic winds. |
format |
Article in Journal/Newspaper |
author |
Ho, I. Ting Medling, Anne M. Bland-Hawthorn, Joss Groves, Brent Kewley, Lisa J. Kobayashi, Chiaki Dopita, Michael A. Leslie, Sarah K. Sharp, Rob Allen, James T. Bourne, Nathan Bryant, Julia J. Cortese, Luca Croom, Scott M. Dunne, Loretta Fogarty, L. M.R. Goodwin, Michael Green, Andy W. Konstantopoulos, Iraklis S. Lawrence, Jon S. Lorente, Nuria P.F. Owers, Matt S. Richards, Samuel Sweet, Sarah M. Tescari, Edoardo Valiante, Elisabetta |
spellingShingle |
Ho, I. Ting Medling, Anne M. Bland-Hawthorn, Joss Groves, Brent Kewley, Lisa J. Kobayashi, Chiaki Dopita, Michael A. Leslie, Sarah K. Sharp, Rob Allen, James T. Bourne, Nathan Bryant, Julia J. Cortese, Luca Croom, Scott M. Dunne, Loretta Fogarty, L. M.R. Goodwin, Michael Green, Andy W. Konstantopoulos, Iraklis S. Lawrence, Jon S. Lorente, Nuria P.F. Owers, Matt S. Richards, Samuel Sweet, Sarah M. Tescari, Edoardo Valiante, Elisabetta The SAMI Galaxy Survey:extraplanar gas, Galactic winds and their association with star formation history |
author_facet |
Ho, I. Ting Medling, Anne M. Bland-Hawthorn, Joss Groves, Brent Kewley, Lisa J. Kobayashi, Chiaki Dopita, Michael A. Leslie, Sarah K. Sharp, Rob Allen, James T. Bourne, Nathan Bryant, Julia J. Cortese, Luca Croom, Scott M. Dunne, Loretta Fogarty, L. M.R. Goodwin, Michael Green, Andy W. Konstantopoulos, Iraklis S. Lawrence, Jon S. Lorente, Nuria P.F. Owers, Matt S. Richards, Samuel Sweet, Sarah M. Tescari, Edoardo Valiante, Elisabetta |
author_sort |
Ho, I. Ting |
title |
The SAMI Galaxy Survey:extraplanar gas, Galactic winds and their association with star formation history |
title_short |
The SAMI Galaxy Survey:extraplanar gas, Galactic winds and their association with star formation history |
title_full |
The SAMI Galaxy Survey:extraplanar gas, Galactic winds and their association with star formation history |
title_fullStr |
The SAMI Galaxy Survey:extraplanar gas, Galactic winds and their association with star formation history |
title_full_unstemmed |
The SAMI Galaxy Survey:extraplanar gas, Galactic winds and their association with star formation history |
title_sort |
sami galaxy survey:extraplanar gas, galactic winds and their association with star formation history |
publishDate |
2016 |
url |
https://researchers.mq.edu.au/en/publications/9e827cf1-843b-442f-9627-153da015f160 https://doi.org/10.1093/mnras/stw017 https://research-management.mq.edu.au/ws/files/62253560/Publisher%20version.pdf http://www.scopus.com/inward/record.url?scp=84963611545&partnerID=8YFLogxK http://purl.org/au-research/grants/arc/CE1101020 |
genre |
sami |
genre_facet |
sami |
op_source |
Ho , I T , Medling , A M , Bland-Hawthorn , J , Groves , B , Kewley , L J , Kobayashi , C , Dopita , M A , Leslie , S K , Sharp , R , Allen , J T , Bourne , N , Bryant , J J , Cortese , L , Croom , S M , Dunne , L , Fogarty , L M R , Goodwin , M , Green , A W , Konstantopoulos , I S , Lawrence , J S , Lorente , N P F , Owers , M S , Richards , S , Sweet , S M , Tescari , E & Valiante , E 2016 , ' The SAMI Galaxy Survey : extraplanar gas, Galactic winds and their association with star formation history ' , Monthly Notices of the Royal Astronomical Society , vol. 457 , no. 2 , pp. 1257-1278 . https://doi.org/10.1093/mnras/stw017 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/mnras/stw017 |
container_title |
Monthly Notices of the Royal Astronomical Society |
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457 |
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2 |
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1257 |
op_container_end_page |
1278 |
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