An analytical approximation of the hubble space telescope monochromatic point spread functions

A mixture of off-center Gaussians is used to approximate the predicted monochromatic point spread functions (PSFs) of Hubble Space Telescope (HST) at long wavelengths, and also, with a reduced number of parameters, the wide-band PSFs. The usefulness of the approximation in simulation and analysis of...

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Bibliographic Details
Published in:Journal of astrophysics and astronomy 1987-12, Vol.8 (4), p.343-350
Main Authors: Bendinelli, O., Parmeggiani, G., Zavatti, F.
Format: Article
Language:English
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Summary:A mixture of off-center Gaussians is used to approximate the predicted monochromatic point spread functions (PSFs) of Hubble Space Telescope (HST) at long wavelengths, and also, with a reduced number of parameters, the wide-band PSFs. The usefulness of the approximation in simulation and analysis of HST data is shown by means of application to image centering and convolution-deconvolution problems. (Author)
ISSN:0250-6335
0973-7758
DOI:10.1007/BF02714898