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Single Star Scidar first light from Dôme C

Published online by Cambridge University Press:  01 August 2006

Jean Vernin ,
Merieme Chadid ,
Eric Aristidi ,
Max Azouit ,
Tatiana Sadibekova  and
Hervé Trinquet
Jean Vernin
Affiliation:
LUAN, UMR 6525, Université de Nice - Sophia Antipolis, F-06108 Nice Cedex 1, France email: [email protected]
Merieme Chadid
Affiliation:
LUAN, UMR 6525, Université de Nice - Sophia Antipolis, F-06108 Nice Cedex 1, France email: [email protected]
Eric Aristidi
Affiliation:
LUAN, UMR 6525, Université de Nice - Sophia Antipolis, F-06108 Nice Cedex 1, France email: [email protected]
Max Azouit
Affiliation:
LUAN, UMR 6525, Université de Nice - Sophia Antipolis, F-06108 Nice Cedex 1, France email: [email protected]
Tatiana Sadibekova
Affiliation:
LUAN, UMR 6525, Université de Nice - Sophia Antipolis, F-06108 Nice Cedex 1, France email: [email protected]
Hervé Trinquet
Affiliation:
LUAN, UMR 6525, Université de Nice - Sophia Antipolis, F-06108 Nice Cedex 1, France email: [email protected]
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In the recent years, a lot of instruments have been put into operation during the polar summer at DômeC., Then, during the first polar night when the Astro-Concordia sation was open for the first time during winter, about 40 balloons (Azouit & Vernin) instrumented to measure optical turbulence profiles and 2 Differencial Image Motion Monitors (DIMM) were setup. The main results from this first important campaign are found in Agabi et al. (2006). It appears from this first night time observations that almost all the optical turbulence was concentrated in the first 30 m above the ice. At an elevation of 8.5 m above the ice the seeing is about 1″.4, while above an elevation of 30 m the seeing drops down to 0″.36. This last figure is coherent with the estimation from Lawrence et al. (2004) if one takes into account that they were not sensitive to the first 30 m., which corresponds to the turbulent surface layer.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Highlights of Astronomy 14: Highlights of Astronomy , August 2006 , pp. 695 - 696
Copyright
Copyright © International Astronomical Union 2007

References

Agabi, A., Aristidi, E., Azouit, M., et al. 2006, PASP, 118, 344Google Scholar
Aristidi, E., Agabi, A., Vernin, J., et al. 2003, A&A (Letters), 406, L19Google Scholar
Azouit, M., & Vernin, J. 2005, PASP, 117, 536Google Scholar
Habib, A. H., et al. 2005, Comptes Rendus Acad. Sci. Paris, 3, 385Google Scholar
Habib, A., Vernin, J., Benkhaldoun, Z., & Lanteri, H. 2006, MNRAS, 368, 1456CrossRefGoogle Scholar
Lawrence, J. S., Ashley, M. C. B., Tokovinin, A., & Travouillon, T. 2004, Nature, 431, 278Google Scholar