The SAMI Galaxy Survey: Spatially resolving the environmental quenching of star formation in GAMA galaxies
We use data from the Sydney-AAO Multi-Object Integral Field Spectrograph (SAMI) Galaxy Survey and the Galaxy And Mass Assembly (GAMA) survey to investigate the spatially-resolved signatures of the environmental quenching of star formation in galaxies. Using dust-corrected measurements of the distrib...
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ftdatacite:10.48550/arxiv.1609.02635 2023-05-15T18:11:32+02:00 The SAMI Galaxy Survey: Spatially resolving the environmental quenching of star formation in GAMA galaxies Schaefer, A. L. Croom, S. M. Allen, J. T. Brough, S. Medling, A. M. Ho, I. -T. Scott, N. Richards, S. N. Pracy, M. B. Gunawardhana, M. L. P. Norberg, P. Alpaslan, M. Bauer, A. E. Bekki, K. Bland-Hawthorn, J. Bloom, J. V. Bryant, J. J. Couch, W. J. Driver, S. P. Fogarty, L. M. R. Foster, C. Goldstein, G. Green, A. W. Hopkins, A. M. Konstantopoulos, I. S. Lawrence, J. S. López-Sánchez, A. R. Lorente, N. P. F. Owers, M. S. Sharp, R. Sweet, S. M. Taylor, E. N. van de Sande, J. Walcher, C. J. Wong, O. I. 2016 https://dx.doi.org/10.48550/arxiv.1609.02635 https://arxiv.org/abs/1609.02635 unknown arXiv https://dx.doi.org/10.1093/mnras/stw2289 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Astrophysics of Galaxies astro-ph.GA FOS Physical sciences article-journal Article ScholarlyArticle Text 2016 ftdatacite https://doi.org/10.48550/arxiv.1609.02635 https://doi.org/10.1093/mnras/stw2289 2022-04-01T11:06:18Z We use data from the Sydney-AAO Multi-Object Integral Field Spectrograph (SAMI) Galaxy Survey and the Galaxy And Mass Assembly (GAMA) survey to investigate the spatially-resolved signatures of the environmental quenching of star formation in galaxies. Using dust-corrected measurements of the distribution of H$α$ emission we measure the radial profiles of star formation in a sample of 201 star-forming galaxies covering three orders of magnitude in stellar mass (M$_{*}$; $10^{8.1}$-$10^{10.95}\, $M$_{\odot}$) and in $5^{th}$ nearest neighbour local environment density ($Σ_{5}$; $10^{-1.3}$-$10^{2.1}\,$Mpc$^{-2}$). We show that star formation rate gradients in galaxies are steeper in dense ($\log_{10}(Σ_{5}/$Mpc$^{2})>0.5$) environments by $0.58\pm 0.29\, dex\, $r$_{e}^{-1}$ in galaxies with stellar masses in the range $10^{10}1.0$). These lines of evidence strongly suggest that with increasing local environment density the star formation in galaxies is suppressed, and that this starts in their outskirts such that quenching occurs in an outside-in fashion in dense environments and is not instantaneous. : 24 pages, 16 figures, accepted for publication in MNRAS Text sami DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
spellingShingle |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences Schaefer, A. L. Croom, S. M. Allen, J. T. Brough, S. Medling, A. M. Ho, I. -T. Scott, N. Richards, S. N. Pracy, M. B. Gunawardhana, M. L. P. Norberg, P. Alpaslan, M. Bauer, A. E. Bekki, K. Bland-Hawthorn, J. Bloom, J. V. Bryant, J. J. Couch, W. J. Driver, S. P. Fogarty, L. M. R. Foster, C. Goldstein, G. Green, A. W. Hopkins, A. M. Konstantopoulos, I. S. Lawrence, J. S. López-Sánchez, A. R. Lorente, N. P. F. Owers, M. S. Sharp, R. Sweet, S. M. Taylor, E. N. van de Sande, J. Walcher, C. J. Wong, O. I. The SAMI Galaxy Survey: Spatially resolving the environmental quenching of star formation in GAMA galaxies |
topic_facet |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
description |
We use data from the Sydney-AAO Multi-Object Integral Field Spectrograph (SAMI) Galaxy Survey and the Galaxy And Mass Assembly (GAMA) survey to investigate the spatially-resolved signatures of the environmental quenching of star formation in galaxies. Using dust-corrected measurements of the distribution of H$α$ emission we measure the radial profiles of star formation in a sample of 201 star-forming galaxies covering three orders of magnitude in stellar mass (M$_{*}$; $10^{8.1}$-$10^{10.95}\, $M$_{\odot}$) and in $5^{th}$ nearest neighbour local environment density ($Σ_{5}$; $10^{-1.3}$-$10^{2.1}\,$Mpc$^{-2}$). We show that star formation rate gradients in galaxies are steeper in dense ($\log_{10}(Σ_{5}/$Mpc$^{2})>0.5$) environments by $0.58\pm 0.29\, dex\, $r$_{e}^{-1}$ in galaxies with stellar masses in the range $10^{10}1.0$). These lines of evidence strongly suggest that with increasing local environment density the star formation in galaxies is suppressed, and that this starts in their outskirts such that quenching occurs in an outside-in fashion in dense environments and is not instantaneous. : 24 pages, 16 figures, accepted for publication in MNRAS |
format |
Text |
author |
Schaefer, A. L. Croom, S. M. Allen, J. T. Brough, S. Medling, A. M. Ho, I. -T. Scott, N. Richards, S. N. Pracy, M. B. Gunawardhana, M. L. P. Norberg, P. Alpaslan, M. Bauer, A. E. Bekki, K. Bland-Hawthorn, J. Bloom, J. V. Bryant, J. J. Couch, W. J. Driver, S. P. Fogarty, L. M. R. Foster, C. Goldstein, G. Green, A. W. Hopkins, A. M. Konstantopoulos, I. S. Lawrence, J. S. López-Sánchez, A. R. Lorente, N. P. F. Owers, M. S. Sharp, R. Sweet, S. M. Taylor, E. N. van de Sande, J. Walcher, C. J. Wong, O. I. |
author_facet |
Schaefer, A. L. Croom, S. M. Allen, J. T. Brough, S. Medling, A. M. Ho, I. -T. Scott, N. Richards, S. N. Pracy, M. B. Gunawardhana, M. L. P. Norberg, P. Alpaslan, M. Bauer, A. E. Bekki, K. Bland-Hawthorn, J. Bloom, J. V. Bryant, J. J. Couch, W. J. Driver, S. P. Fogarty, L. M. R. Foster, C. Goldstein, G. Green, A. W. Hopkins, A. M. Konstantopoulos, I. S. Lawrence, J. S. López-Sánchez, A. R. Lorente, N. P. F. Owers, M. S. Sharp, R. Sweet, S. M. Taylor, E. N. van de Sande, J. Walcher, C. J. Wong, O. I. |
author_sort |
Schaefer, A. L. |
title |
The SAMI Galaxy Survey: Spatially resolving the environmental quenching of star formation in GAMA galaxies |
title_short |
The SAMI Galaxy Survey: Spatially resolving the environmental quenching of star formation in GAMA galaxies |
title_full |
The SAMI Galaxy Survey: Spatially resolving the environmental quenching of star formation in GAMA galaxies |
title_fullStr |
The SAMI Galaxy Survey: Spatially resolving the environmental quenching of star formation in GAMA galaxies |
title_full_unstemmed |
The SAMI Galaxy Survey: Spatially resolving the environmental quenching of star formation in GAMA galaxies |
title_sort |
sami galaxy survey: spatially resolving the environmental quenching of star formation in gama galaxies |
publisher |
arXiv |
publishDate |
2016 |
url |
https://dx.doi.org/10.48550/arxiv.1609.02635 https://arxiv.org/abs/1609.02635 |
genre |
sami |
genre_facet |
sami |
op_relation |
https://dx.doi.org/10.1093/mnras/stw2289 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1609.02635 https://doi.org/10.1093/mnras/stw2289 |
_version_ |
1766184179551174656 |