Remarks on the information content of stellar images obtained with CCD detectors

Details Remarks on the information content of stellar images obtained with CCD detectors Remarks on the information content of stellar images obtained with CCD detectors

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...270..557m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 270, no. 1-2, p. 557-560.

Astronomy and Astrophysics

Astrophysics

Astronomical Photography, Charge Coupled Devices, Double Stars, Stellar Spectra, Astrometry, Signal To Noise Ratios, Telescopes

Scientific paper

By means of a mathematical analysis of stellar CCD-image frames, taken with ground-based telescopes with longer integration times, it is shown that the information content of stellar images is less degraded by seeing than has previously been supposed. Thus closer double stars can be resolved and photometrically deconvolved by the proposed method. It can also be applied to stellar photography and spectroscopy.

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