The Near-Infrared Sky Emission at the South Pole in Winter
The antarctic plateau provides superb sites for infrared astronomy, a result of the combination of low temperature, low levels of precipitable water vapour, high altitude and atmospheric stability. We have undertaken measurements of the sky background from 1--5 m at the South Pole, using a single ch...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.41.1813 2023-05-15T13:58:31+02:00 The Near-Infrared Sky Emission at the South Pole in Winter Phillips Burton Ashley A. Phillips M. G. Burton M. C. B. Ashley J. W. V. Storey J. P. Lloyd J. Bally The Pennsylvania State University CiteSeerX Archives 1999 application/postscript http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.41.1813 http://astro.uchicago.edu/cara/research/papers/irpsNov98.ps.gz en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.41.1813 http://astro.uchicago.edu/cara/research/papers/irpsNov98.ps.gz Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://astro.uchicago.edu/cara/research/papers/irpsNov98.ps.gz text 1999 ftciteseerx 2016-01-08T03:14:58Z The antarctic plateau provides superb sites for infrared astronomy, a result of the combination of low temperature, low levels of precipitable water vapour, high altitude and atmospheric stability. We have undertaken measurements of the sky background from 1--5 m at the South Pole, using a single channel InSb spectrometer, the `IRPS', during the winter (dark) period of 1995. The IRPS records the DC level of the sky flux through a 4 ffi beam and a variety of broad band and narrow (1%) band filters. It can be scanned in elevation from horizon to horizon through the zenith. We find a reduction in the background of thermal emission of 20--100 times from mid-latitude sites such as Siding Spring and Mauna Kea, with typical background levels of 80--200 Jy/arcsec 2 at 2.43 m, 100--300 mJy/arcsec 2 at 3.6 m and 1 Jy/arcsec 2 at 4.8 m. Airglow emission contributes significantly to the sky flux shortward of 2.4 m, which is why the K dark (2.27--2.45 m) band emission does not drop to the . Text Antarc* Antarctic South pole South pole Unknown Antarctic South Pole The Antarctic |
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English |
description |
The antarctic plateau provides superb sites for infrared astronomy, a result of the combination of low temperature, low levels of precipitable water vapour, high altitude and atmospheric stability. We have undertaken measurements of the sky background from 1--5 m at the South Pole, using a single channel InSb spectrometer, the `IRPS', during the winter (dark) period of 1995. The IRPS records the DC level of the sky flux through a 4 ffi beam and a variety of broad band and narrow (1%) band filters. It can be scanned in elevation from horizon to horizon through the zenith. We find a reduction in the background of thermal emission of 20--100 times from mid-latitude sites such as Siding Spring and Mauna Kea, with typical background levels of 80--200 Jy/arcsec 2 at 2.43 m, 100--300 mJy/arcsec 2 at 3.6 m and 1 Jy/arcsec 2 at 4.8 m. Airglow emission contributes significantly to the sky flux shortward of 2.4 m, which is why the K dark (2.27--2.45 m) band emission does not drop to the . |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Phillips Burton Ashley A. Phillips M. G. Burton M. C. B. Ashley J. W. V. Storey J. P. Lloyd J. Bally |
spellingShingle |
Phillips Burton Ashley A. Phillips M. G. Burton M. C. B. Ashley J. W. V. Storey J. P. Lloyd J. Bally The Near-Infrared Sky Emission at the South Pole in Winter |
author_facet |
Phillips Burton Ashley A. Phillips M. G. Burton M. C. B. Ashley J. W. V. Storey J. P. Lloyd J. Bally |
author_sort |
Phillips Burton Ashley |
title |
The Near-Infrared Sky Emission at the South Pole in Winter |
title_short |
The Near-Infrared Sky Emission at the South Pole in Winter |
title_full |
The Near-Infrared Sky Emission at the South Pole in Winter |
title_fullStr |
The Near-Infrared Sky Emission at the South Pole in Winter |
title_full_unstemmed |
The Near-Infrared Sky Emission at the South Pole in Winter |
title_sort |
near-infrared sky emission at the south pole in winter |
publishDate |
1999 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.41.1813 http://astro.uchicago.edu/cara/research/papers/irpsNov98.ps.gz |
geographic |
Antarctic South Pole The Antarctic |
geographic_facet |
Antarctic South Pole The Antarctic |
genre |
Antarc* Antarctic South pole South pole |
genre_facet |
Antarc* Antarctic South pole South pole |
op_source |
http://astro.uchicago.edu/cara/research/papers/irpsNov98.ps.gz |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.41.1813 http://astro.uchicago.edu/cara/research/papers/irpsNov98.ps.gz |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766266844875849728 |