Paper
27 June 2006 Analysis of K-band imaging of the wide binary system σ CrB with the Lick Observatory NGS AO system
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Abstract
We present astronomical results from K-band adaptive optics (AO) observations of the wide binary system σ Corona Borealis with the Lick Observatory natural guide star adaptive optics system on 2004 August 27-29. Seeing conditions were excellent and the AO compensation was very good, with Strehl ratios reaching 50% at times. The stellar images were reduced using three different analysis techniques: (1) Parametric Blind Deconvolution, (2) Multi-Frame Blind Deconvolution, and (3) the MATPHOT stellar photometry code. The relative photometric and astrometric precision achievable with these three analysis methods are compared. Future directions that this research can go towards achieving the goal of routinely obtaining precise and accurate photometry and astrometry based on near-infrared AO observations are described.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kenneth J. Mighell, Julian C. Christou, and Jack D. Drummond "Analysis of K-band imaging of the wide binary system σ CrB with the Lick Observatory NGS AO system", Proc. SPIE 6272, Advances in Adaptive Optics II, 62720I (27 June 2006); https://doi.org/10.1117/12.670574
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KEYWORDS
Adaptive optics

Point spread functions

Stars

Photometry

Imaging systems

Error analysis

K band

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