Paper
7 February 2003 Anisoplanatism within the isoplanatic patch
Author Affiliations +
Abstract
Measurements of anisoplanatism from data obtained with natural guide star adaptive optics on the Lick Observatory 3m are presented. These were obtained from short exposures of binary stars with the IRCAL camera whose field of view (~20”) is generally considered isoplanatic in the K-band. However, measurable amounts of high-order anisoplanatism were present at separations of ~7” and ~12” with an isoplanatic patch size estimated to be ~26”. Within this field, there was measureable differential image motion between the binary star components. This image motion was small compared to the size of the diffraction-spot and therefore had negligible effect.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Julian C. Christou, E. Steinbring, Sandra M. Faber, Donald T. Gavel, Jennifer Patience, and Elinor L. Gates "Anisoplanatism within the isoplanatic patch", Proc. SPIE 4839, Adaptive Optical System Technologies II, (7 February 2003); https://doi.org/10.1117/12.467863
Lens.org Logo
CITATIONS
Cited by 4 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Point spread functions

Stars

Adaptive optics

Binary data

Spatial frequencies

Motion measurement

Observatories

RELATED CONTENT

Analysis of K band imaging of the wide binary system...
Proceedings of SPIE (June 27 2006)
Performance of the ESO AO system, ADONIS, at the La...
Proceedings of SPIE (October 17 1997)
GRAAL a seeing enhancer for the NIR wide field...
Proceedings of SPIE (July 27 2010)
Deconvolution of ADONIS images
Proceedings of SPIE (September 11 1998)

Back to Top