Estimating the low wind effect on SPHERE with experimental and on-sky data

• Type: Article in International Conference Proceedings Book
• Date: 2017

Authors

Lamb M. (Author) Other; Correia C. (Author) Other; Sauvage J.F. (Author) Other; Véran J.P. (Author) Other; Andersen D. (Author) Other

Conference proceedings International

Title: Adaptive Optics for Extremely Large Telescopes, 2017 AO4ELT5

Indexing

Scopus - 2 Citations

Other information

Authenticus ID: P-014-ZD6

Abstract (EN): In nights at Cerro Paranal where good seeing and low wind conditions are present, the PSF delivered to the focal plane of the SPHERE instrument has been shown to have significant errors, and have been aptly described as the Low Wind Effect' (LWE). We demonstrate here a method to quantify the LWE using experimental and on-sky data. We find single image phase diversity is a useful tool in quantifying the LWE and can be used to monitor this effect over the course of the night.

Language: English

Type (Professor's evaluation): Scientific