Astronomy Astrophysics Letter to the Editor Excellent daytime seeing at Dome Fuji on the Antarctic plateau
Context. Dome Fuji, the second highest region on the Antarctic plateau, is expected to have some of the best astronomical seeing on Earth. However, site testing at Dome Fuji is still in its very early stages. Aims. We investigate the astronomical seeing in the free atmosphere above Dome Fuji and det...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.431.1455 2023-05-15T13:57:00+02:00 Astronomy Astrophysics Letter to the Editor Excellent daytime seeing at Dome Fuji on the Antarctic plateau H. Okita T. Ichikawa M. C. B. Ashley N. Takato H. Motoyama The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.431.1455 http://www.phys.unsw.edu.au/jacara/Papers/pdf/aa21937-13.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.431.1455 http://www.phys.unsw.edu.au/jacara/Papers/pdf/aa21937-13.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.phys.unsw.edu.au/jacara/Papers/pdf/aa21937-13.pdf text ftciteseerx 2016-01-08T04:40:18Z Context. Dome Fuji, the second highest region on the Antarctic plateau, is expected to have some of the best astronomical seeing on Earth. However, site testing at Dome Fuji is still in its very early stages. Aims. We investigate the astronomical seeing in the free atmosphere above Dome Fuji and determine the height of the surface boundary layer. Methods. ADifferential Image Motion Monitor was used to measure the seeing in the visible (472 nm) at a height of 11 m above the snow surface at Dome Fuji during the austral summer of 2012/2013. Results. Seeing below 0.2 ′ ′ has been observed. The seeing often has a local minimum of ∼0.3 ′ ′ near 18 h local time. Some periods of excellent seeing, 0.3 ′ ′ or smaller, were also observed, sometimes extending for several hours around local midnight. The median seeing is larger, at 0.52 ′ ′. This high value is believed to be caused by periods when the telescope was within the turbulent boundary layer. Conclusions. The diurnal variation in the daytime seeing at Dome Fuji is similar to what is reported for Dome C, and the height of the surface boundary layer is consistent with previous simulations for Dome Fuji. The free atmosphere seeing is ∼0.2 ′ ′ , and the height of the surface boundary layer can be as low as ∼11 m. Key words. site testing 1. Text Antarc* Antarctic Unknown Antarctic The Antarctic Austral Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) |
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Context. Dome Fuji, the second highest region on the Antarctic plateau, is expected to have some of the best astronomical seeing on Earth. However, site testing at Dome Fuji is still in its very early stages. Aims. We investigate the astronomical seeing in the free atmosphere above Dome Fuji and determine the height of the surface boundary layer. Methods. ADifferential Image Motion Monitor was used to measure the seeing in the visible (472 nm) at a height of 11 m above the snow surface at Dome Fuji during the austral summer of 2012/2013. Results. Seeing below 0.2 ′ ′ has been observed. The seeing often has a local minimum of ∼0.3 ′ ′ near 18 h local time. Some periods of excellent seeing, 0.3 ′ ′ or smaller, were also observed, sometimes extending for several hours around local midnight. The median seeing is larger, at 0.52 ′ ′. This high value is believed to be caused by periods when the telescope was within the turbulent boundary layer. Conclusions. The diurnal variation in the daytime seeing at Dome Fuji is similar to what is reported for Dome C, and the height of the surface boundary layer is consistent with previous simulations for Dome Fuji. The free atmosphere seeing is ∼0.2 ′ ′ , and the height of the surface boundary layer can be as low as ∼11 m. Key words. site testing 1. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
H. Okita T. Ichikawa M. C. B. Ashley N. Takato H. Motoyama |
spellingShingle |
H. Okita T. Ichikawa M. C. B. Ashley N. Takato H. Motoyama Astronomy Astrophysics Letter to the Editor Excellent daytime seeing at Dome Fuji on the Antarctic plateau |
author_facet |
H. Okita T. Ichikawa M. C. B. Ashley N. Takato H. Motoyama |
author_sort |
H. Okita |
title |
Astronomy Astrophysics Letter to the Editor Excellent daytime seeing at Dome Fuji on the Antarctic plateau |
title_short |
Astronomy Astrophysics Letter to the Editor Excellent daytime seeing at Dome Fuji on the Antarctic plateau |
title_full |
Astronomy Astrophysics Letter to the Editor Excellent daytime seeing at Dome Fuji on the Antarctic plateau |
title_fullStr |
Astronomy Astrophysics Letter to the Editor Excellent daytime seeing at Dome Fuji on the Antarctic plateau |
title_full_unstemmed |
Astronomy Astrophysics Letter to the Editor Excellent daytime seeing at Dome Fuji on the Antarctic plateau |
title_sort |
astronomy astrophysics letter to the editor excellent daytime seeing at dome fuji on the antarctic plateau |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.431.1455 http://www.phys.unsw.edu.au/jacara/Papers/pdf/aa21937-13.pdf |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) |
geographic |
Antarctic The Antarctic Austral Dome Fuji |
geographic_facet |
Antarctic The Antarctic Austral Dome Fuji |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
http://www.phys.unsw.edu.au/jacara/Papers/pdf/aa21937-13.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.431.1455 http://www.phys.unsw.edu.au/jacara/Papers/pdf/aa21937-13.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766264613760925696 |