Archeops: A balloon experiment to measure CMB anisotropies with a broad range of angular sizes
The Cosmic Microwave Background Radiation is the oldest photon radiation that can be observed, having been emitted when the Universe was about 300,000 year old. It is a blackbody at 2.73 K, and is almost perfectly isotropic, the anisotropies being about one part to 100,000. However, these anisotropi...
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ftucl:oai:eprints.ucl.ac.uk.OAI2:1374635 2023-05-15T15:05:41+02:00 Archeops: A balloon experiment to measure CMB anisotropies with a broad range of angular sizes Benoit, A Collaboration, TA 2001-12-01 http://discovery.ucl.ac.uk/1374635/ unknown (2001) astro-ph Article 2001 ftucl 2015-02-12T23:19:58Z The Cosmic Microwave Background Radiation is the oldest photon radiation that can be observed, having been emitted when the Universe was about 300,000 year old. It is a blackbody at 2.73 K, and is almost perfectly isotropic, the anisotropies being about one part to 100,000. However, these anisotropies, detected by the COBE satellite in 1992, constrain the cosmological parameters such as the curvature of the Universe. Archeops is a balloon-borne experiment designed to map these anisotropies. The instrument is composed of a 1.5 m telescope and bolometers cooled at 85 mK to detect radiation between 150 and 550 GHz. To lower atmosphere parasitic signal, the instrument is lifted at 32 km altitude with a stratospheric balloon during the arctic night. This instrument is also a preparation for the Planck satellite mission, as its design is similar. We discuss here the results of the first scientific flight from Esrange (near Kiruna, Sweden) to Russia on January 29th 2001, which led to a 22 % (sub)millimetre sky coverage unprecedented at this resolution. Article in Journal/Newspaper Arctic Kiruna University College London: UCL Discovery Arctic Esrange ENVELOPE(21.117,21.117,67.883,67.883) Kiruna |
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University College London: UCL Discovery |
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astro-ph Benoit, A Collaboration, TA Archeops: A balloon experiment to measure CMB anisotropies with a broad range of angular sizes |
topic_facet |
astro-ph |
description |
The Cosmic Microwave Background Radiation is the oldest photon radiation that can be observed, having been emitted when the Universe was about 300,000 year old. It is a blackbody at 2.73 K, and is almost perfectly isotropic, the anisotropies being about one part to 100,000. However, these anisotropies, detected by the COBE satellite in 1992, constrain the cosmological parameters such as the curvature of the Universe. Archeops is a balloon-borne experiment designed to map these anisotropies. The instrument is composed of a 1.5 m telescope and bolometers cooled at 85 mK to detect radiation between 150 and 550 GHz. To lower atmosphere parasitic signal, the instrument is lifted at 32 km altitude with a stratospheric balloon during the arctic night. This instrument is also a preparation for the Planck satellite mission, as its design is similar. We discuss here the results of the first scientific flight from Esrange (near Kiruna, Sweden) to Russia on January 29th 2001, which led to a 22 % (sub)millimetre sky coverage unprecedented at this resolution. |
format |
Article in Journal/Newspaper |
author |
Benoit, A Collaboration, TA |
author_facet |
Benoit, A Collaboration, TA |
author_sort |
Benoit, A |
title |
Archeops: A balloon experiment to measure CMB anisotropies with a broad range of angular sizes |
title_short |
Archeops: A balloon experiment to measure CMB anisotropies with a broad range of angular sizes |
title_full |
Archeops: A balloon experiment to measure CMB anisotropies with a broad range of angular sizes |
title_fullStr |
Archeops: A balloon experiment to measure CMB anisotropies with a broad range of angular sizes |
title_full_unstemmed |
Archeops: A balloon experiment to measure CMB anisotropies with a broad range of angular sizes |
title_sort |
archeops: a balloon experiment to measure cmb anisotropies with a broad range of angular sizes |
publishDate |
2001 |
url |
http://discovery.ucl.ac.uk/1374635/ |
long_lat |
ENVELOPE(21.117,21.117,67.883,67.883) |
geographic |
Arctic Esrange Kiruna |
geographic_facet |
Arctic Esrange Kiruna |
genre |
Arctic Kiruna |
genre_facet |
Arctic Kiruna |
op_source |
(2001) |
_version_ |
1766337331863748608 |