| Issue |
A&A
Volume 399, Number 3, March I 2003
|
|
|---|---|---|
| Page(s) | 1177 - 1181 | |
| Section | Astronomical instrumentation | |
| DOI | https://doi.org/10.1051/0004-6361:20021851 | |
| Published online | 14 February 2003 | |
Effect of scintillations in curvature sensing
Instituto de Astronomía – UNAM, Apdo. Postal 70-264, Cd. Universitaria, 04510 México D.F., México e-mail: leonardo@astroscu.unam.mx
Corresponding author: V. V. Voitsekhovich, voisteko@astroscu.unam.mx
Received:
13
August
2002
Accepted:
7
November
2002
The effect of scintillations on the curvature sensing which is used in astronomic adaptive systems is investigated. It is shown that the magnitude of the effect depends on two atmospheric turbulence parameters: on the Fried parameter which characterizes the seeing conditions, and on the turbulence inner scale which is responsible for small-sized turbulence inhomogeneities. Depending on the turbulence conditions, the magnitude of the effect ranges from 3% to 20%, while for the typical ones it is of the order of 10%–15%.
Key words: atmospheric effects / instrumentation: adaptive optics / instrumentation: high angular resolution
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.