Overcoming the boundary layer turbulence at Dome C: ground-layer adaptive optics versus tower
The unique atmospheric conditions present at sites such as Dome C on the Antarctic plateau are very favorable for high spatial resolution astronomy. At Dome C, the majority of the optical turbulence is confined to a 30 to 40 m thick stable boundary layer that results from the strong temperature inve...
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ftcaltechauth:oai:authors.library.caltech.edu:15934 2023-05-15T13:49:58+02:00 Overcoming the boundary layer turbulence at Dome C: ground-layer adaptive optics versus tower Travouillon, T. Jolissaint, L. Ashley, M. C. B. Lawrence, J. S. Storey, J. W. V. 2009-06 application/pdf https://authors.library.caltech.edu/15934/ https://authors.library.caltech.edu/15934/1/Travouillon2009p4545Publ_Astron_Soc_Pac.pdf https://resolver.caltech.edu/CaltechAUTHORS:20090917-193435942 en eng Astronomical Society of the Pacific https://authors.library.caltech.edu/15934/1/Travouillon2009p4545Publ_Astron_Soc_Pac.pdf Travouillon, T. and Jolissaint, L. and Ashley, M. C. B. and Lawrence, J. S. and Storey, J. W. V. (2009) Overcoming the boundary layer turbulence at Dome C: ground-layer adaptive optics versus tower. Publications of the Astronomical Society of the Pacific, 121 (880). pp. 668-679. ISSN 0004-6280. doi:10.1086/600077. https://resolver.caltech.edu/CaltechAUTHORS:20090917-193435942 <https://resolver.caltech.edu/CaltechAUTHORS:20090917-193435942> other Article PeerReviewed 2009 ftcaltechauth https://doi.org/10.1086/600077 2021-11-11T18:43:00Z The unique atmospheric conditions present at sites such as Dome C on the Antarctic plateau are very favorable for high spatial resolution astronomy. At Dome C, the majority of the optical turbulence is confined to a 30 to 40 m thick stable boundary layer that results from the strong temperature inversion created by the heat exchange between the air and the ice-covered ground. To fully realize the potential of the exceptionally calm free atmosphere, this boundary layer must be overcome. In this article we compare the performance of two methods proposed to beat the boundary layer: mounting a telescope on a tower that physically puts it above the turbulent layer, and installing a telescope at ground level with a ground-layer adaptive optics system. A case is also made to combine these two methods to further improve the image quality. Article in Journal/Newspaper Antarc* Antarctic Caltech Authors (California Institute of Technology) Antarctic The Antarctic Publications of the Astronomical Society of the Pacific 121 880 668 679 |
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Caltech Authors (California Institute of Technology) |
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ftcaltechauth |
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English |
description |
The unique atmospheric conditions present at sites such as Dome C on the Antarctic plateau are very favorable for high spatial resolution astronomy. At Dome C, the majority of the optical turbulence is confined to a 30 to 40 m thick stable boundary layer that results from the strong temperature inversion created by the heat exchange between the air and the ice-covered ground. To fully realize the potential of the exceptionally calm free atmosphere, this boundary layer must be overcome. In this article we compare the performance of two methods proposed to beat the boundary layer: mounting a telescope on a tower that physically puts it above the turbulent layer, and installing a telescope at ground level with a ground-layer adaptive optics system. A case is also made to combine these two methods to further improve the image quality. |
format |
Article in Journal/Newspaper |
author |
Travouillon, T. Jolissaint, L. Ashley, M. C. B. Lawrence, J. S. Storey, J. W. V. |
spellingShingle |
Travouillon, T. Jolissaint, L. Ashley, M. C. B. Lawrence, J. S. Storey, J. W. V. Overcoming the boundary layer turbulence at Dome C: ground-layer adaptive optics versus tower |
author_facet |
Travouillon, T. Jolissaint, L. Ashley, M. C. B. Lawrence, J. S. Storey, J. W. V. |
author_sort |
Travouillon, T. |
title |
Overcoming the boundary layer turbulence at Dome C: ground-layer adaptive optics versus tower |
title_short |
Overcoming the boundary layer turbulence at Dome C: ground-layer adaptive optics versus tower |
title_full |
Overcoming the boundary layer turbulence at Dome C: ground-layer adaptive optics versus tower |
title_fullStr |
Overcoming the boundary layer turbulence at Dome C: ground-layer adaptive optics versus tower |
title_full_unstemmed |
Overcoming the boundary layer turbulence at Dome C: ground-layer adaptive optics versus tower |
title_sort |
overcoming the boundary layer turbulence at dome c: ground-layer adaptive optics versus tower |
publisher |
Astronomical Society of the Pacific |
publishDate |
2009 |
url |
https://authors.library.caltech.edu/15934/ https://authors.library.caltech.edu/15934/1/Travouillon2009p4545Publ_Astron_Soc_Pac.pdf https://resolver.caltech.edu/CaltechAUTHORS:20090917-193435942 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://authors.library.caltech.edu/15934/1/Travouillon2009p4545Publ_Astron_Soc_Pac.pdf Travouillon, T. and Jolissaint, L. and Ashley, M. C. B. and Lawrence, J. S. and Storey, J. W. V. (2009) Overcoming the boundary layer turbulence at Dome C: ground-layer adaptive optics versus tower. Publications of the Astronomical Society of the Pacific, 121 (880). pp. 668-679. ISSN 0004-6280. doi:10.1086/600077. https://resolver.caltech.edu/CaltechAUTHORS:20090917-193435942 <https://resolver.caltech.edu/CaltechAUTHORS:20090917-193435942> |
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other |
op_doi |
https://doi.org/10.1086/600077 |
container_title |
Publications of the Astronomical Society of the Pacific |
container_volume |
121 |
container_issue |
880 |
container_start_page |
668 |
op_container_end_page |
679 |
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1766252668778446848 |