Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1494..503s&link_type=abstract
IN: Space astronomical telescopes and instruments; Proceedings of the Meeting, Orlando, FL, Apr. 1-4, 1991 (A92-45151 19-89). Be
Astronomy and Astrophysics
Astronomy
Angular Resolution, Atmospheric Correction, Atmospheric Turbulence, Hubble Space Telescope, Signal To Noise Ratios, Faint Objects, Point Spread Functions, Wave Front Reconstruction
Scientific paper
This paper compares and discusses the attempts to overcome the 'seeing' resolution limit imposed by spherical aberration for the Hubble Space Telescope and by atmospheric turbulences for the case of ground-based telescopes. From recently reposed experimental data it is shown that wavefront reconstruction algorithms are capable of restoring nearly fully the Hubble's spherical aberration of the primary mirror. Also from previously reported results of ground-based telescopes which utilize the powerful spectral imaging technique at high and low light levels, comparisons are made for different object magnitudes the two types of telescope resolutions 'seeing' resolution, SNR and point source resolution.
Billerey D.
Souilhac D.
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