High resolution spectral imaging of CO(7-6), [CI](2-1), and continuum of three high-z lensed dusty star-forming galaxies using ALMA
High-redshift dusty star-forming galaxies with very high star formation rates (500-3000 M-circle dot yr(-1)) are key to understanding the formation of the most extreme galaxies in the early Universe. Characterising the gas reservoir of these systems can reveal the driving factor behind the high star...
Published in: | Astronomy & Astrophysics |
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2022
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Online Access: | https://curis.ku.dk/portal/da/publications/high-resolution-spectral-imaging-of-co76-ci21-and-continuum-of-three-highz-lensed-dusty-starforming-galaxies-using-alma(2063bca6-c80c-4837-9e91-8ea9bf143486).html https://doi.org/10.1051/0004-6361/202142172 https://curis.ku.dk/ws/files/319527043/aa42172_21.pdf |
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ftcopenhagenunip:oai:pure.atira.dk:publications/2063bca6-c80c-4837-9e91-8ea9bf143486 2024-06-09T07:49:39+00:00 High resolution spectral imaging of CO(7-6), [CI](2-1), and continuum of three high-z lensed dusty star-forming galaxies using ALMA Gururajan, G. Bethermin, M. Theule, P. Spilker, J. S. Aravena, M. Archipley, M. A. Chapman, S. C. De Breuck, C. Gonzalez, A. Hayward, C. C. Hezaveh, Y. Hill, R. Jarugula, S. Litke, K. C. Malkan, M. Marrone, D. P. Narayanan, D. Phadke, K. A. Reuter, C. Vieira, J. D. Vizgan, D. Weiss, A. 2022-07-04 application/pdf https://curis.ku.dk/portal/da/publications/high-resolution-spectral-imaging-of-co76-ci21-and-continuum-of-three-highz-lensed-dusty-starforming-galaxies-using-alma(2063bca6-c80c-4837-9e91-8ea9bf143486).html https://doi.org/10.1051/0004-6361/202142172 https://curis.ku.dk/ws/files/319527043/aa42172_21.pdf eng eng info:eu-repo/semantics/openAccess Gururajan , G , Bethermin , M , Theule , P , Spilker , J S , Aravena , M , Archipley , M A , Chapman , S C , De Breuck , C , Gonzalez , A , Hayward , C C , Hezaveh , Y , Hill , R , Jarugula , S , Litke , K C , Malkan , M , Marrone , D P , Narayanan , D , Phadke , K A , Reuter , C , Vieira , J D , Vizgan , D & Weiss , A 2022 , ' High resolution spectral imaging of CO(7-6), [CI](2-1), and continuum of three high-z lensed dusty star-forming galaxies using ALMA ' , Astronomy & Astrophysics , vol. 663 , A22 . https://doi.org/10.1051/0004-6361/202142172 galaxies high-redshift evolution ISM kinematics and dynamics star formation submillimeter DEEP FIELD SOUTH UBIQUITOUS MOLECULAR OUTFLOWS SIMILAR-TO 4 ATOMIC CARBON SUBMILLIMETER GALAXIES INTERSTELLAR-MEDIUM STARBURST GALAXIES GAS FRACTIONS CO article 2022 ftcopenhagenunip https://doi.org/10.1051/0004-6361/202142172 2024-05-16T11:29:25Z High-redshift dusty star-forming galaxies with very high star formation rates (500-3000 M-circle dot yr(-1)) are key to understanding the formation of the most extreme galaxies in the early Universe. Characterising the gas reservoir of these systems can reveal the driving factor behind the high star formation. Using molecular gas tracers such as, high-J CO lines, neutral carbon lines, and the dust continuum, we can estimate the gas density and radiation field intensity in their interstellar media. In this paper, we present high resolution (similar to 0.4 '') observations of CO(7-6), [CI](2-1), and dust continuum of three lensed galaxies from the South pole telescope - sub-millimetre galaxies (SPT-SMG) sample at z & x2004;similar to & x2004;3 with the Atacama Large Millimetre/submillimetre Array. Our sources have high intrinsic star formation rates (> 850 M-circle dot yr(-1)) and rather short depletion timescales (< 100 Myr). Based on the L[CI](2-1)/LCO(7 - 6) and L[CI](2-1)/L-IR ratios, our galaxy sample has similar radiation field intensities and gas densities compared to other submillimetre galaxies. We performed visibility-based lens modelling on these objects to reconstruct the kinematics in the source plane. We find that the cold gas masses of the sources are compatible with simple dynamical mass estimates using ULIRG-like values of the CO-H-2 conversion factor alpha(CO), but not Milky Way-like values. We find diverse source kinematics in our sample: SPT0103-45 and SPT2147-50 are likely rotating disks, while SPT2357-51 is possibly a major merger. The analysis presented in the paper could be extended to a larger sample to determine better statistics of morphologies and interstellar medium properties of high-z dusty star-forming galaxies. Article in Journal/Newspaper South pole University of Copenhagen: Research Milky Way ENVELOPE(-68.705,-68.705,-71.251,-71.251) South Pole Astronomy & Astrophysics 663 A22 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
galaxies high-redshift evolution ISM kinematics and dynamics star formation submillimeter DEEP FIELD SOUTH UBIQUITOUS MOLECULAR OUTFLOWS SIMILAR-TO 4 ATOMIC CARBON SUBMILLIMETER GALAXIES INTERSTELLAR-MEDIUM STARBURST GALAXIES GAS FRACTIONS CO |
spellingShingle |
galaxies high-redshift evolution ISM kinematics and dynamics star formation submillimeter DEEP FIELD SOUTH UBIQUITOUS MOLECULAR OUTFLOWS SIMILAR-TO 4 ATOMIC CARBON SUBMILLIMETER GALAXIES INTERSTELLAR-MEDIUM STARBURST GALAXIES GAS FRACTIONS CO Gururajan, G. Bethermin, M. Theule, P. Spilker, J. S. Aravena, M. Archipley, M. A. Chapman, S. C. De Breuck, C. Gonzalez, A. Hayward, C. C. Hezaveh, Y. Hill, R. Jarugula, S. Litke, K. C. Malkan, M. Marrone, D. P. Narayanan, D. Phadke, K. A. Reuter, C. Vieira, J. D. Vizgan, D. Weiss, A. High resolution spectral imaging of CO(7-6), [CI](2-1), and continuum of three high-z lensed dusty star-forming galaxies using ALMA |
topic_facet |
galaxies high-redshift evolution ISM kinematics and dynamics star formation submillimeter DEEP FIELD SOUTH UBIQUITOUS MOLECULAR OUTFLOWS SIMILAR-TO 4 ATOMIC CARBON SUBMILLIMETER GALAXIES INTERSTELLAR-MEDIUM STARBURST GALAXIES GAS FRACTIONS CO |
description |
High-redshift dusty star-forming galaxies with very high star formation rates (500-3000 M-circle dot yr(-1)) are key to understanding the formation of the most extreme galaxies in the early Universe. Characterising the gas reservoir of these systems can reveal the driving factor behind the high star formation. Using molecular gas tracers such as, high-J CO lines, neutral carbon lines, and the dust continuum, we can estimate the gas density and radiation field intensity in their interstellar media. In this paper, we present high resolution (similar to 0.4 '') observations of CO(7-6), [CI](2-1), and dust continuum of three lensed galaxies from the South pole telescope - sub-millimetre galaxies (SPT-SMG) sample at z & x2004;similar to & x2004;3 with the Atacama Large Millimetre/submillimetre Array. Our sources have high intrinsic star formation rates (> 850 M-circle dot yr(-1)) and rather short depletion timescales (< 100 Myr). Based on the L[CI](2-1)/LCO(7 - 6) and L[CI](2-1)/L-IR ratios, our galaxy sample has similar radiation field intensities and gas densities compared to other submillimetre galaxies. We performed visibility-based lens modelling on these objects to reconstruct the kinematics in the source plane. We find that the cold gas masses of the sources are compatible with simple dynamical mass estimates using ULIRG-like values of the CO-H-2 conversion factor alpha(CO), but not Milky Way-like values. We find diverse source kinematics in our sample: SPT0103-45 and SPT2147-50 are likely rotating disks, while SPT2357-51 is possibly a major merger. The analysis presented in the paper could be extended to a larger sample to determine better statistics of morphologies and interstellar medium properties of high-z dusty star-forming galaxies. |
format |
Article in Journal/Newspaper |
author |
Gururajan, G. Bethermin, M. Theule, P. Spilker, J. S. Aravena, M. Archipley, M. A. Chapman, S. C. De Breuck, C. Gonzalez, A. Hayward, C. C. Hezaveh, Y. Hill, R. Jarugula, S. Litke, K. C. Malkan, M. Marrone, D. P. Narayanan, D. Phadke, K. A. Reuter, C. Vieira, J. D. Vizgan, D. Weiss, A. |
author_facet |
Gururajan, G. Bethermin, M. Theule, P. Spilker, J. S. Aravena, M. Archipley, M. A. Chapman, S. C. De Breuck, C. Gonzalez, A. Hayward, C. C. Hezaveh, Y. Hill, R. Jarugula, S. Litke, K. C. Malkan, M. Marrone, D. P. Narayanan, D. Phadke, K. A. Reuter, C. Vieira, J. D. Vizgan, D. Weiss, A. |
author_sort |
Gururajan, G. |
title |
High resolution spectral imaging of CO(7-6), [CI](2-1), and continuum of three high-z lensed dusty star-forming galaxies using ALMA |
title_short |
High resolution spectral imaging of CO(7-6), [CI](2-1), and continuum of three high-z lensed dusty star-forming galaxies using ALMA |
title_full |
High resolution spectral imaging of CO(7-6), [CI](2-1), and continuum of three high-z lensed dusty star-forming galaxies using ALMA |
title_fullStr |
High resolution spectral imaging of CO(7-6), [CI](2-1), and continuum of three high-z lensed dusty star-forming galaxies using ALMA |
title_full_unstemmed |
High resolution spectral imaging of CO(7-6), [CI](2-1), and continuum of three high-z lensed dusty star-forming galaxies using ALMA |
title_sort |
high resolution spectral imaging of co(7-6), [ci](2-1), and continuum of three high-z lensed dusty star-forming galaxies using alma |
publishDate |
2022 |
url |
https://curis.ku.dk/portal/da/publications/high-resolution-spectral-imaging-of-co76-ci21-and-continuum-of-three-highz-lensed-dusty-starforming-galaxies-using-alma(2063bca6-c80c-4837-9e91-8ea9bf143486).html https://doi.org/10.1051/0004-6361/202142172 https://curis.ku.dk/ws/files/319527043/aa42172_21.pdf |
long_lat |
ENVELOPE(-68.705,-68.705,-71.251,-71.251) |
geographic |
Milky Way South Pole |
geographic_facet |
Milky Way South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Gururajan , G , Bethermin , M , Theule , P , Spilker , J S , Aravena , M , Archipley , M A , Chapman , S C , De Breuck , C , Gonzalez , A , Hayward , C C , Hezaveh , Y , Hill , R , Jarugula , S , Litke , K C , Malkan , M , Marrone , D P , Narayanan , D , Phadke , K A , Reuter , C , Vieira , J D , Vizgan , D & Weiss , A 2022 , ' High resolution spectral imaging of CO(7-6), [CI](2-1), and continuum of three high-z lensed dusty star-forming galaxies using ALMA ' , Astronomy & Astrophysics , vol. 663 , A22 . https://doi.org/10.1051/0004-6361/202142172 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1051/0004-6361/202142172 |
container_title |
Astronomy & Astrophysics |
container_volume |
663 |
container_start_page |
A22 |
_version_ |
1801382388686651392 |