Diffraction-limited 800 nm imaging with the 2.56 m Nordic Optical Telescope
Abstract
A quantitative assessment is presented of diffraction-limited stellar images with Strehl ratios of 0.25-0.30 obtained by selection of short-exposure CCD images of stars brighter than +6 m at 810 nm with the Nordic Optical Telescope.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 2001
- DOI:
- 10.1051/0004-6361:20010118
- arXiv:
- arXiv:astro-ph/0101408
- Bibcode:
- 2001A&A...368L...1B
- Keywords:
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- ATMOSPHERIC EFFECTS;
- METHODS: OBSERVATIONAL;
- STARS: INDIVIDUAL: <ASTROBJ>BETA DELPHINI</ASTROBJ>;
- STARS: INDIVIDUAL: <ASTROBJ>ZETA BOÖTIS</ASTROBJ>;
- Astrophysics
- E-Print:
- Accepted by A&