A method of estimating time scales of atmospheric piston and its application at DomeC (Antarctica)
Temporal fluctuations of the atmospheric piston are critical for interferometers as they determine their sensitivity. We characterize an instrumental set-up, termed the piston scope, that aims at measuring the atmospheric time constant, tau0, through the image motion in the focal plane of a Fizeau i...
Main Authors: | , , , |
---|---|
Language: | English |
Published: |
2007
|
Subjects: | |
Online Access: | http://cds.cern.ch/record/1021733 |
id |
ftcern:oai:cds.cern.ch:1021733 |
---|---|
record_format |
openpolar |
spelling |
ftcern:oai:cds.cern.ch:1021733 2023-05-15T13:58:28+02:00 A method of estimating time scales of atmospheric piston and its application at DomeC (Antarctica) Kellerer, A Sarazin, M Butterley, T Wilson, R 2007-03-06 http://cds.cern.ch/record/1021733 eng eng http://cds.cern.ch/record/1021733 astro-ph/0703119 oai:cds.cern.ch:1021733 Astrophysics and Astronomy 2007 ftcern 2018-07-28T08:48:23Z Temporal fluctuations of the atmospheric piston are critical for interferometers as they determine their sensitivity. We characterize an instrumental set-up, termed the piston scope, that aims at measuring the atmospheric time constant, tau0, through the image motion in the focal plane of a Fizeau interferometer. High-resolution piston scope measurements have been obtained at the observatory of Paranal, Chile, in April 2006. The derived atmospheric parameters are shown to be consistent with data from the astronomical site monitor, provided that the atmospheric turbulence is displaced along a single direction. Piston scope measurements, of lower temporal and spatial resolution, were for the first time recorded in February 2005 at the Antarctic site of DomeC. Their re-analysis in terms of the new data calibration sharpens the conclusions of a first qualitative examination. Other/Unknown Material Antarc* Antarctic Antarctica CERN Document Server (CDS) Antarctic The Antarctic |
institution |
Open Polar |
collection |
CERN Document Server (CDS) |
op_collection_id |
ftcern |
language |
English |
topic |
Astrophysics and Astronomy |
spellingShingle |
Astrophysics and Astronomy Kellerer, A Sarazin, M Butterley, T Wilson, R A method of estimating time scales of atmospheric piston and its application at DomeC (Antarctica) |
topic_facet |
Astrophysics and Astronomy |
description |
Temporal fluctuations of the atmospheric piston are critical for interferometers as they determine their sensitivity. We characterize an instrumental set-up, termed the piston scope, that aims at measuring the atmospheric time constant, tau0, through the image motion in the focal plane of a Fizeau interferometer. High-resolution piston scope measurements have been obtained at the observatory of Paranal, Chile, in April 2006. The derived atmospheric parameters are shown to be consistent with data from the astronomical site monitor, provided that the atmospheric turbulence is displaced along a single direction. Piston scope measurements, of lower temporal and spatial resolution, were for the first time recorded in February 2005 at the Antarctic site of DomeC. Their re-analysis in terms of the new data calibration sharpens the conclusions of a first qualitative examination. |
author |
Kellerer, A Sarazin, M Butterley, T Wilson, R |
author_facet |
Kellerer, A Sarazin, M Butterley, T Wilson, R |
author_sort |
Kellerer, A |
title |
A method of estimating time scales of atmospheric piston and its application at DomeC (Antarctica) |
title_short |
A method of estimating time scales of atmospheric piston and its application at DomeC (Antarctica) |
title_full |
A method of estimating time scales of atmospheric piston and its application at DomeC (Antarctica) |
title_fullStr |
A method of estimating time scales of atmospheric piston and its application at DomeC (Antarctica) |
title_full_unstemmed |
A method of estimating time scales of atmospheric piston and its application at DomeC (Antarctica) |
title_sort |
method of estimating time scales of atmospheric piston and its application at domec (antarctica) |
publishDate |
2007 |
url |
http://cds.cern.ch/record/1021733 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
http://cds.cern.ch/record/1021733 astro-ph/0703119 oai:cds.cern.ch:1021733 |
_version_ |
1766266792672493568 |