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Proceedings Paper

Monitoring of atmospheric sodium: new method to get the telluric spectrum and influence of the water lines in the performances of LGS
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Paper Abstract

The monitoring of the column density of atmospheric sodium could be crucial for the efficiency of LGS systems. However, its detection is affected by the presence of water lines around the sodium doublet lines; this is really dramatic in the D2 line. We have developed a new method to detect the D2 sodium telluric line, obtaining previously the solar spectrum clean of telluric contamination. This method does not need any theoretical supposition on the solar line profile. We analyze the influence of the water lines in the detection of the D2 line and discuss the effects on the efficiency of LGSs.

Paper Details

Date Published: 7 July 2000
PDF: 8 pages
Proc. SPIE 4007, Adaptive Optical Systems Technology, (7 July 2000); doi: 10.1117/12.390335
Show Author Affiliations
Sergio Chueca Urzay, Instituto de Astrofisica de Canarias (Spain)
Jesus Jimenez Fuensalida, Instituto de Astrofisica de Canarias (Spain)


Published in SPIE Proceedings Vol. 4007:
Adaptive Optical Systems Technology
Peter L. Wizinowich, Editor(s)

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