The redshift distribution of dusty star forming galaxies from the SPT survey
We use the Atacama Large Millimeter/submillimeter Array (ALMA) in Cycle 1 to determine spectroscopic redshifts of high-redshift dusty star-forming galaxies (DSFGs) selected by their 1.4mm continuum emission in the South Pole Telescope (SPT) survey. We present ALMA 3mm spectral scans between 84-114GH...
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ftdatacite:10.48550/arxiv.1603.05094 2023-05-15T18:23:06+02:00 The redshift distribution of dusty star forming galaxies from the SPT survey Strandet, M. L. Weiß, A. Vieira, J. D. de Breuck, C. Aguirre, J. E. Aravena, M. Ashby, M. L. N. Béthermin, M. Bradford, C. M. Carlstrom, J. E. Chapman, S. C. Crawford, T. M. Everett, W. Fassnacht, C. D. Furstenau, R. M. Gonzalez, A. H. Greve, T. R. Gullberg, B. Hezaveh, Y. Kamenetzky, J. R. Litke, K. Ma, J. Malkan, M. Marrone, D. P. Menten, K. M. Murphy, E. J. Nadolski, A. Rotermund, K. M. Spilker, J. S. Stark, A. A. Welikala, N. 2016 https://dx.doi.org/10.48550/arxiv.1603.05094 https://arxiv.org/abs/1603.05094 unknown arXiv https://dx.doi.org/10.3847/0004-637x/822/2/80 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.1603.05094 https://doi.org/10.3847/0004-637x/822/2/80 2022-04-01T11:34:15Z We use the Atacama Large Millimeter/submillimeter Array (ALMA) in Cycle 1 to determine spectroscopic redshifts of high-redshift dusty star-forming galaxies (DSFGs) selected by their 1.4mm continuum emission in the South Pole Telescope (SPT) survey. We present ALMA 3mm spectral scans between 84-114GHz for 15 galaxies and targeted ALMA 1mm observations for an additional eight sources. Our observations yield 30 new line detections from CO, [CI] , [NII] , H_2O and NH_3. We further present APEX [CII] and CO mid-J observations for seven sources for which only a single line was detected in spectral-scan data from ALMA Cycle 0 or Cycle 1. We combine the new observations with previously published and new mm/submm line and photometric data of the SPT-selected DSFGs to study their redshift distribution. The combined data yield 39 spectroscopic redshifts from molecular lines, a success rate of >85%. Our sample represents the largest data set of its kind today and has the highest spectroscopic completeness among all redshift surveys of high-z DSFGs. The median of the redshift distribution is z=3.9+/-0.4, and the highest-redshift source in our sample is at z=5.8. We discuss how the selection of our sources affects the redshift distribution, focusing on source brightness, selection wavelength, and strong gravitational lensing. We correct for the effect of gravitational lensing and find the redshift distribution for 1.4mm-selected sources with a median redshift of z=3.1+/-0.3. Comparing to redshift distributions selected at shorter wavelengths from the literature, we show that selection wavelength affects the shape of the redshift distribution. Text South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole |
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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 |
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Astrophysics of Galaxies astro-ph.GA FOS Physical sciences Strandet, M. L. Weiß, A. Vieira, J. D. de Breuck, C. Aguirre, J. E. Aravena, M. Ashby, M. L. N. Béthermin, M. Bradford, C. M. Carlstrom, J. E. Chapman, S. C. Crawford, T. M. Everett, W. Fassnacht, C. D. Furstenau, R. M. Gonzalez, A. H. Greve, T. R. Gullberg, B. Hezaveh, Y. Kamenetzky, J. R. Litke, K. Ma, J. Malkan, M. Marrone, D. P. Menten, K. M. Murphy, E. J. Nadolski, A. Rotermund, K. M. Spilker, J. S. Stark, A. A. Welikala, N. The redshift distribution of dusty star forming galaxies from the SPT survey |
topic_facet |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
description |
We use the Atacama Large Millimeter/submillimeter Array (ALMA) in Cycle 1 to determine spectroscopic redshifts of high-redshift dusty star-forming galaxies (DSFGs) selected by their 1.4mm continuum emission in the South Pole Telescope (SPT) survey. We present ALMA 3mm spectral scans between 84-114GHz for 15 galaxies and targeted ALMA 1mm observations for an additional eight sources. Our observations yield 30 new line detections from CO, [CI] , [NII] , H_2O and NH_3. We further present APEX [CII] and CO mid-J observations for seven sources for which only a single line was detected in spectral-scan data from ALMA Cycle 0 or Cycle 1. We combine the new observations with previously published and new mm/submm line and photometric data of the SPT-selected DSFGs to study their redshift distribution. The combined data yield 39 spectroscopic redshifts from molecular lines, a success rate of >85%. Our sample represents the largest data set of its kind today and has the highest spectroscopic completeness among all redshift surveys of high-z DSFGs. The median of the redshift distribution is z=3.9+/-0.4, and the highest-redshift source in our sample is at z=5.8. We discuss how the selection of our sources affects the redshift distribution, focusing on source brightness, selection wavelength, and strong gravitational lensing. We correct for the effect of gravitational lensing and find the redshift distribution for 1.4mm-selected sources with a median redshift of z=3.1+/-0.3. Comparing to redshift distributions selected at shorter wavelengths from the literature, we show that selection wavelength affects the shape of the redshift distribution. |
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Text |
author |
Strandet, M. L. Weiß, A. Vieira, J. D. de Breuck, C. Aguirre, J. E. Aravena, M. Ashby, M. L. N. Béthermin, M. Bradford, C. M. Carlstrom, J. E. Chapman, S. C. Crawford, T. M. Everett, W. Fassnacht, C. D. Furstenau, R. M. Gonzalez, A. H. Greve, T. R. Gullberg, B. Hezaveh, Y. Kamenetzky, J. R. Litke, K. Ma, J. Malkan, M. Marrone, D. P. Menten, K. M. Murphy, E. J. Nadolski, A. Rotermund, K. M. Spilker, J. S. Stark, A. A. Welikala, N. |
author_facet |
Strandet, M. L. Weiß, A. Vieira, J. D. de Breuck, C. Aguirre, J. E. Aravena, M. Ashby, M. L. N. Béthermin, M. Bradford, C. M. Carlstrom, J. E. Chapman, S. C. Crawford, T. M. Everett, W. Fassnacht, C. D. Furstenau, R. M. Gonzalez, A. H. Greve, T. R. Gullberg, B. Hezaveh, Y. Kamenetzky, J. R. Litke, K. Ma, J. Malkan, M. Marrone, D. P. Menten, K. M. Murphy, E. J. Nadolski, A. Rotermund, K. M. Spilker, J. S. Stark, A. A. Welikala, N. |
author_sort |
Strandet, M. L. |
title |
The redshift distribution of dusty star forming galaxies from the SPT survey |
title_short |
The redshift distribution of dusty star forming galaxies from the SPT survey |
title_full |
The redshift distribution of dusty star forming galaxies from the SPT survey |
title_fullStr |
The redshift distribution of dusty star forming galaxies from the SPT survey |
title_full_unstemmed |
The redshift distribution of dusty star forming galaxies from the SPT survey |
title_sort |
redshift distribution of dusty star forming galaxies from the spt survey |
publisher |
arXiv |
publishDate |
2016 |
url |
https://dx.doi.org/10.48550/arxiv.1603.05094 https://arxiv.org/abs/1603.05094 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://dx.doi.org/10.3847/0004-637x/822/2/80 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1603.05094 https://doi.org/10.3847/0004-637x/822/2/80 |
_version_ |
1766202539858984960 |