Diffraction-limited CCD imaging with faint reference stars
Astrophysics
2009-11-07 v1
Abstract
By selecting short exposure images taken using a CCD with negligible readout noise we obtained essentially diffraction-limited 810 nm images of faint objects using nearby reference stars brighter than I=16 at a 2.56 m telescope. The FWHM of the isoplanatic patch for the technique is found to be 50 arcseconds, providing ~20% sky coverage around suitable reference stars.
Cite
@article{arxiv.astro-ph/0203470,
title = {Diffraction-limited CCD imaging with faint reference stars},
author = {R. N. Tubbs and J. E. Baldwin and C. D. Mackay and G. C. Cox},
journal= {arXiv preprint arXiv:astro-ph/0203470},
year = {2009}
}
Comments
4 page letter accepted for publication in Astronomy and Astrophysics