The Rest-frame Submillimeter Spectrum of High-redshift, Dusty, Star-forming Galaxies from the SPT-SZ Survey
We present the average rest-frame spectrum of the final catalog of dusty star-forming galaxies (DSFGs) selected from the South Pole Telescope's SPT-SZ survey and measured with Band 3 of the Atacama Large Millimeter/submillimeter Array. This work builds on the previous average rest-frame spectru...
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Online Access: | https://doi.org/10.3847/1538-4357/acaf51 https://doaj.org/article/4bd595943b044a6f8d8165d72e651941 |
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ftdoajarticles:oai:doaj.org/article:4bd595943b044a6f8d8165d72e651941 2023-10-09T21:55:59+02:00 The Rest-frame Submillimeter Spectrum of High-redshift, Dusty, Star-forming Galaxies from the SPT-SZ Survey C. Reuter J. S. Spilker J. D. Vieira D. P. Marrone A. Weiss M. Aravena M. A. Archipley S. C. Chapman A. Gonzalez T. R. Greve C. C. Hayward R. Hill S. Jarugula S. Kim M. Malkan K. A. Phadke A. A. Stark N. Sulzenauer D. Vizgan 2023-01-01T00:00:00Z https://doi.org/10.3847/1538-4357/acaf51 https://doaj.org/article/4bd595943b044a6f8d8165d72e651941 EN eng IOP Publishing https://doi.org/10.3847/1538-4357/acaf51 https://doaj.org/toc/1538-4357 doi:10.3847/1538-4357/acaf51 1538-4357 https://doaj.org/article/4bd595943b044a6f8d8165d72e651941 The Astrophysical Journal, Vol 948, Iss 1, p 44 (2023) Interstellar medium Strong gravitational lensing Ultraluminous infrared galaxies Cosmology Astrochemistry Astrophysics QB460-466 article 2023 ftdoajarticles https://doi.org/10.3847/1538-4357/acaf51 2023-09-10T00:40:22Z We present the average rest-frame spectrum of the final catalog of dusty star-forming galaxies (DSFGs) selected from the South Pole Telescope's SPT-SZ survey and measured with Band 3 of the Atacama Large Millimeter/submillimeter Array. This work builds on the previous average rest-frame spectrum, given in Spilker et al. (2014) for the first 22 sources, and is comprised of a total of 78 sources, normalized by their respective apparent dust masses. The spectrum spans 1.9 < z < 6.9 and covers rest-frame frequencies of 240–800 GHz. Combining this data with low- J CO observations from the Australia Telescope Compact Array, we detect multiple bright line features from ^12 CO, [C i ], and H _2 O, as well as fainter molecular transitions from ^13 CO, HCN, HCO ^+ , HNC, CN, H _2 O ^+ , and CH. We use these detections, along with limits from other molecules, to characterize the typical properties of the interstellar medium (ISM) for these high-redshift DSFGs. We are able to divide the large sample into subsets in order to explore how the average spectrum changes with various galaxy properties, such as effective dust temperature. We find that systems with hotter dust temperatures exhibit differences in the bright ^12 CO emission lines, and contain either warmer and more excited dense gas tracers or larger dense gas reservoirs. These observations will serve as a reference point to studies of the ISM in distant luminous DSFGs ( L _IR > 10 ^12 L _⊙ ), and will inform studies of chemical evolution before the peak epoch of star formation at z = 2–3. Article in Journal/Newspaper South pole Directory of Open Access Journals: DOAJ Articles South Pole The Astrophysical Journal 948 1 44 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Interstellar medium Strong gravitational lensing Ultraluminous infrared galaxies Cosmology Astrochemistry Astrophysics QB460-466 |
spellingShingle |
Interstellar medium Strong gravitational lensing Ultraluminous infrared galaxies Cosmology Astrochemistry Astrophysics QB460-466 C. Reuter J. S. Spilker J. D. Vieira D. P. Marrone A. Weiss M. Aravena M. A. Archipley S. C. Chapman A. Gonzalez T. R. Greve C. C. Hayward R. Hill S. Jarugula S. Kim M. Malkan K. A. Phadke A. A. Stark N. Sulzenauer D. Vizgan The Rest-frame Submillimeter Spectrum of High-redshift, Dusty, Star-forming Galaxies from the SPT-SZ Survey |
topic_facet |
Interstellar medium Strong gravitational lensing Ultraluminous infrared galaxies Cosmology Astrochemistry Astrophysics QB460-466 |
description |
We present the average rest-frame spectrum of the final catalog of dusty star-forming galaxies (DSFGs) selected from the South Pole Telescope's SPT-SZ survey and measured with Band 3 of the Atacama Large Millimeter/submillimeter Array. This work builds on the previous average rest-frame spectrum, given in Spilker et al. (2014) for the first 22 sources, and is comprised of a total of 78 sources, normalized by their respective apparent dust masses. The spectrum spans 1.9 < z < 6.9 and covers rest-frame frequencies of 240–800 GHz. Combining this data with low- J CO observations from the Australia Telescope Compact Array, we detect multiple bright line features from ^12 CO, [C i ], and H _2 O, as well as fainter molecular transitions from ^13 CO, HCN, HCO ^+ , HNC, CN, H _2 O ^+ , and CH. We use these detections, along with limits from other molecules, to characterize the typical properties of the interstellar medium (ISM) for these high-redshift DSFGs. We are able to divide the large sample into subsets in order to explore how the average spectrum changes with various galaxy properties, such as effective dust temperature. We find that systems with hotter dust temperatures exhibit differences in the bright ^12 CO emission lines, and contain either warmer and more excited dense gas tracers or larger dense gas reservoirs. These observations will serve as a reference point to studies of the ISM in distant luminous DSFGs ( L _IR > 10 ^12 L _⊙ ), and will inform studies of chemical evolution before the peak epoch of star formation at z = 2–3. |
format |
Article in Journal/Newspaper |
author |
C. Reuter J. S. Spilker J. D. Vieira D. P. Marrone A. Weiss M. Aravena M. A. Archipley S. C. Chapman A. Gonzalez T. R. Greve C. C. Hayward R. Hill S. Jarugula S. Kim M. Malkan K. A. Phadke A. A. Stark N. Sulzenauer D. Vizgan |
author_facet |
C. Reuter J. S. Spilker J. D. Vieira D. P. Marrone A. Weiss M. Aravena M. A. Archipley S. C. Chapman A. Gonzalez T. R. Greve C. C. Hayward R. Hill S. Jarugula S. Kim M. Malkan K. A. Phadke A. A. Stark N. Sulzenauer D. Vizgan |
author_sort |
C. Reuter |
title |
The Rest-frame Submillimeter Spectrum of High-redshift, Dusty, Star-forming Galaxies from the SPT-SZ Survey |
title_short |
The Rest-frame Submillimeter Spectrum of High-redshift, Dusty, Star-forming Galaxies from the SPT-SZ Survey |
title_full |
The Rest-frame Submillimeter Spectrum of High-redshift, Dusty, Star-forming Galaxies from the SPT-SZ Survey |
title_fullStr |
The Rest-frame Submillimeter Spectrum of High-redshift, Dusty, Star-forming Galaxies from the SPT-SZ Survey |
title_full_unstemmed |
The Rest-frame Submillimeter Spectrum of High-redshift, Dusty, Star-forming Galaxies from the SPT-SZ Survey |
title_sort |
rest-frame submillimeter spectrum of high-redshift, dusty, star-forming galaxies from the spt-sz survey |
publisher |
IOP Publishing |
publishDate |
2023 |
url |
https://doi.org/10.3847/1538-4357/acaf51 https://doaj.org/article/4bd595943b044a6f8d8165d72e651941 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
The Astrophysical Journal, Vol 948, Iss 1, p 44 (2023) |
op_relation |
https://doi.org/10.3847/1538-4357/acaf51 https://doaj.org/toc/1538-4357 doi:10.3847/1538-4357/acaf51 1538-4357 https://doaj.org/article/4bd595943b044a6f8d8165d72e651941 |
op_doi |
https://doi.org/10.3847/1538-4357/acaf51 |
container_title |
The Astrophysical Journal |
container_volume |
948 |
container_issue |
1 |
container_start_page |
44 |
_version_ |
1779320263323680768 |