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...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Oxford University Press
2016
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Online Access: | http://hdl.handle.net/1959.3/421309 https://doi.org/10.1093/mnras/stw017 |
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ftswinburneunicr:oai:researchbank.swinburne.edu.au:0c760885-305a-408d-9127-52f566b4e9b7/1 2023-05-15T18:11:51+02:00 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 Swinburne University of Technology 2016 http://hdl.handle.net/1959.3/421309 https://doi.org/10.1093/mnras/stw017 unknown Oxford University Press http://purl.org/au-research/grants/arc/DP130103925 http://purl.org/au-research/grants/arc/FT140101202 http://purl.org/au-research/grants/arc/DP130100664 http://purl.org/au-research/grants/arc/CE110001020 http://hdl.handle.net/1959.3/421309 https://doi.org/10.1093/mnras/stw017 This article has been accepted for publication in the Monthly Notices of the Royal Astronomical Society. Copyright © 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. Monthly Notices of the Royal Astronomical Society, Vol. 457, no. 2 (Apr 2016), pp. 1257-1278 Journal article 2016 ftswinburneunicr https://doi.org/10.1093/mnras/stw017 2022-09-11T16:50:41Z 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 a parts per thousand(2) log (SFR/M-aS (TM) yr(-1)) a parts per thousand(2) 0.5) across the whole stellar mass range of the sample (8.5 a parts per thousand(2) log (M-*/M-aS (TM)) a parts per thousand(2) 11). The wind galaxies also span a wide range in SFR surface densities (10(- 3)-10(- 1.5) M-aS (TM) yr(- 1) kpc(- 2)) that is much lower than the canonical threshold of 0.1 M-aS (TM) yr(- 1) kpc(- 2). The wind galaxies on average have higher SFR surface densities and higher H delta(A) values than those without strong wind signatures. The enhanced H delta(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 Swinburne Research Bank (Swinburne University of Technology) Monthly Notices of the Royal Astronomical Society 457 2 1257 1278 |
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Swinburne Research Bank (Swinburne University of Technology) |
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ftswinburneunicr |
language |
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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 a parts per thousand(2) log (SFR/M-aS (TM) yr(-1)) a parts per thousand(2) 0.5) across the whole stellar mass range of the sample (8.5 a parts per thousand(2) log (M-*/M-aS (TM)) a parts per thousand(2) 11). The wind galaxies also span a wide range in SFR surface densities (10(- 3)-10(- 1.5) M-aS (TM) yr(- 1) kpc(- 2)) that is much lower than the canonical threshold of 0.1 M-aS (TM) yr(- 1) kpc(- 2). The wind galaxies on average have higher SFR surface densities and higher H delta(A) values than those without strong wind signatures. The enhanced H delta(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. |
author2 |
Swinburne University of Technology |
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 |
publisher |
Oxford University Press |
publishDate |
2016 |
url |
http://hdl.handle.net/1959.3/421309 https://doi.org/10.1093/mnras/stw017 |
genre |
sami |
genre_facet |
sami |
op_source |
Monthly Notices of the Royal Astronomical Society, Vol. 457, no. 2 (Apr 2016), pp. 1257-1278 |
op_relation |
http://purl.org/au-research/grants/arc/DP130103925 http://purl.org/au-research/grants/arc/FT140101202 http://purl.org/au-research/grants/arc/DP130100664 http://purl.org/au-research/grants/arc/CE110001020 http://hdl.handle.net/1959.3/421309 https://doi.org/10.1093/mnras/stw017 |
op_rights |
This article has been accepted for publication in the Monthly Notices of the Royal Astronomical Society. Copyright © 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. |
op_doi |
https://doi.org/10.1093/mnras/stw017 |
container_title |
Monthly Notices of the Royal Astronomical Society |
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457 |
container_issue |
2 |
container_start_page |
1257 |
op_container_end_page |
1278 |
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1766184464037183488 |