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Dome C site testing: long term statistics of integrated optical turbulence parameters at ground level

Published online by Cambridge University Press:  30 January 2013

E. Aristidi ,
A. Agabi ,
E. Fossat ,
A. Ziad ,
L. Abe ,
E. Bondoux ,
G. Bouchez ,
Z. Challita ,
F. Jeanneaux  and
D. Mékarnia
...Show all authors
E. Aristidi
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
A. Agabi
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
E. Fossat
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
A. Ziad
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
L. Abe
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
E. Bondoux
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
G. Bouchez
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
Z. Challita
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
F. Jeanneaux
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
D. Mékarnia
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
D. Petermann
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
C. Pouzenc
Affiliation:
Laboratoire Lagrange, Université de Nice, Parc Valrose, F-06108 Nice Cedex 2
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Abstract

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We present long term site testing statistics based on DIMM and GSM data obtained at Dome C, Antarctica. These data have been collected on the bright star Canopus since the end of 2003. We give values of the integrated turbulence parameters in the visible (wavelength 500 nm). The median value we obtained for the seeing are 1.2 arcsec, 2.0 arcsec and 0.8 arcsec at respective elevations of 8m, 3m and 20m above the ground. The isoplanatic angle median value is 4.0 arcsec and the median outer scale is 7.5m. We found that both the seeing and the isoplanatic angle exhibit a strong dependence with the season (the seeing is larger in winter while the isoplanatic angle is smaller).

Keywords

site testingatmospheric effectsoptical turbulence
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S288: Astrophysics from Antarctica , August 2012 , pp. 300 - 301
Copyright
Copyright © International Astronomical Union 2013

References

Aristidi, E., Agabi, A., Vernin, J.et al., 2003, A&A, 406, L19Google Scholar
Aristidi, E., Agabi, A., Fossat, E.et al., 2005, A&A, 444, 651Google Scholar
Aristidi, E., Fossat, E., Agabi, A.et al., 2009, A&A, 499, 955Google Scholar
Ziad, A., Aristidi, E., Agabi, et al., 2008, A&A, 491, 917Google Scholar