| Issue |
Astron. Astrophys. Suppl. Ser.
Volume 121, Number 3, March 1997
|
|
|---|---|---|
| Page(s) | 569 - 573 | |
| DOI | https://doi.org/10.1051/aas:1997127 | |
| Published online | 15 March 1997 | |
The effective layer height for star wandering and the accuracy of tilt sensing in multicolour laser stars
1
Astronomical Observatory of Padova, vicolo dell'Osservatorio 5, I–35122 Padova, Italy
2
CISAS, vicolo dell'Osservatorio 5, I–35122 Padova, Italy
3
Center for Astronomical Adaptive Optics, 933 N Cherry Ave. Tucson, U.S.A.
Send offprint request to: R. Ragazzoni
Received:
1
April
1996
Accepted:
20
June
1996
Due to the finite height of the mesospheric sodium laser guide star, it is
shown that
the measurement of absolute tilt done with the multi–colour laser star
technique is affected by an uncertainty depending upon the 
distribution. Two case studies for 
and 
meter
telescopes are given.
Key words: atmospheric effects / techniques: miscellaneous / telescopes
© European Southern Observatory (ESO), 1997