Exceptional terahertz transparency and stability above dome A, Antarctica
We present the first direct measurements of the terahertz atmospheric transmission above Dome A, the highest point on the Antarctic plateau at an elevation of 4.1 km. The best-quartile atmospheric transmission during the Austral winter is 80% at a frequency of 661 GHz (453 μm), corresponding to a pr...
Published in: | Publications of the Astronomical Society of the Pacific |
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2010
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Online Access: | https://researchers.mq.edu.au/en/publications/1101e2e4-4612-4ae0-a3e9-0aa8d804cfb1 https://doi.org/10.1086/652276 https://research-management.mq.edu.au/ws/files/62228559/Publisher%20version%20(open%20access).pdf http://www.scopus.com/inward/record.url?scp=77950347911&partnerID=8YFLogxK |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/1101e2e4-4612-4ae0-a3e9-0aa8d804cfb1 2024-09-09T19:10:31+00:00 Exceptional terahertz transparency and stability above dome A, Antarctica Yang, H. Kulesa, C. A. Walker, C. K. Tothill, N. F H Yang, J. Ashley, M. C B Cui, X. Feng, L. Lawrence, J. S. Luong-Van, D. M. Mccaughrean, M. J. Storey, J. W V Wang, L. Zhou, X. Zhu, Z. 2010-04 application/pdf https://researchers.mq.edu.au/en/publications/1101e2e4-4612-4ae0-a3e9-0aa8d804cfb1 https://doi.org/10.1086/652276 https://research-management.mq.edu.au/ws/files/62228559/Publisher%20version%20(open%20access).pdf http://www.scopus.com/inward/record.url?scp=77950347911&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Yang , H , Kulesa , C A , Walker , C K , Tothill , N F H , Yang , J , Ashley , M C B , Cui , X , Feng , L , Lawrence , J S , Luong-Van , D M , Mccaughrean , M J , Storey , J W V , Wang , L , Zhou , X & Zhu , Z 2010 , ' Exceptional terahertz transparency and stability above dome A, Antarctica ' , Publications of the Astronomical Society of the Pacific , vol. 122 , no. 890 , pp. 490-494 . https://doi.org/10.1086/652276 article 2010 ftmacquarieunicr https://doi.org/10.1086/652276 2024-06-19T23:46:56Z We present the first direct measurements of the terahertz atmospheric transmission above Dome A, the highest point on the Antarctic plateau at an elevation of 4.1 km. The best-quartile atmospheric transmission during the Austral winter is 80% at a frequency of 661 GHz (453 μm), corresponding to a precipitable water vapor column of 0.1 mm. Daily averages as low as 0.025 mm were observed. The Antarctic atmosphere is very stable, and excellent observing conditions generally persist for many days at a time. The exceptional conditions over the high Antarctic plateau open new far-infrared spectral windows to ground-based observation. These windows contain important spectral-line diagnostics of star formation and the interstellar medium which would otherwise only be accessible to airborne or space telescopes. Article in Journal/Newspaper Antarc* Antarctic Antarctica Macquarie University Research Portal Antarctic Austral The Antarctic Publications of the Astronomical Society of the Pacific 122 890 490 494 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
description |
We present the first direct measurements of the terahertz atmospheric transmission above Dome A, the highest point on the Antarctic plateau at an elevation of 4.1 km. The best-quartile atmospheric transmission during the Austral winter is 80% at a frequency of 661 GHz (453 μm), corresponding to a precipitable water vapor column of 0.1 mm. Daily averages as low as 0.025 mm were observed. The Antarctic atmosphere is very stable, and excellent observing conditions generally persist for many days at a time. The exceptional conditions over the high Antarctic plateau open new far-infrared spectral windows to ground-based observation. These windows contain important spectral-line diagnostics of star formation and the interstellar medium which would otherwise only be accessible to airborne or space telescopes. |
format |
Article in Journal/Newspaper |
author |
Yang, H. Kulesa, C. A. Walker, C. K. Tothill, N. F H Yang, J. Ashley, M. C B Cui, X. Feng, L. Lawrence, J. S. Luong-Van, D. M. Mccaughrean, M. J. Storey, J. W V Wang, L. Zhou, X. Zhu, Z. |
spellingShingle |
Yang, H. Kulesa, C. A. Walker, C. K. Tothill, N. F H Yang, J. Ashley, M. C B Cui, X. Feng, L. Lawrence, J. S. Luong-Van, D. M. Mccaughrean, M. J. Storey, J. W V Wang, L. Zhou, X. Zhu, Z. Exceptional terahertz transparency and stability above dome A, Antarctica |
author_facet |
Yang, H. Kulesa, C. A. Walker, C. K. Tothill, N. F H Yang, J. Ashley, M. C B Cui, X. Feng, L. Lawrence, J. S. Luong-Van, D. M. Mccaughrean, M. J. Storey, J. W V Wang, L. Zhou, X. Zhu, Z. |
author_sort |
Yang, H. |
title |
Exceptional terahertz transparency and stability above dome A, Antarctica |
title_short |
Exceptional terahertz transparency and stability above dome A, Antarctica |
title_full |
Exceptional terahertz transparency and stability above dome A, Antarctica |
title_fullStr |
Exceptional terahertz transparency and stability above dome A, Antarctica |
title_full_unstemmed |
Exceptional terahertz transparency and stability above dome A, Antarctica |
title_sort |
exceptional terahertz transparency and stability above dome a, antarctica |
publishDate |
2010 |
url |
https://researchers.mq.edu.au/en/publications/1101e2e4-4612-4ae0-a3e9-0aa8d804cfb1 https://doi.org/10.1086/652276 https://research-management.mq.edu.au/ws/files/62228559/Publisher%20version%20(open%20access).pdf http://www.scopus.com/inward/record.url?scp=77950347911&partnerID=8YFLogxK |
geographic |
Antarctic Austral The Antarctic |
geographic_facet |
Antarctic Austral The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Yang , H , Kulesa , C A , Walker , C K , Tothill , N F H , Yang , J , Ashley , M C B , Cui , X , Feng , L , Lawrence , J S , Luong-Van , D M , Mccaughrean , M J , Storey , J W V , Wang , L , Zhou , X & Zhu , Z 2010 , ' Exceptional terahertz transparency and stability above dome A, Antarctica ' , Publications of the Astronomical Society of the Pacific , vol. 122 , no. 890 , pp. 490-494 . https://doi.org/10.1086/652276 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1086/652276 |
container_title |
Publications of the Astronomical Society of the Pacific |
container_volume |
122 |
container_issue |
890 |
container_start_page |
490 |
op_container_end_page |
494 |
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1809825867385274368 |