An analytical approximation of the hubble space telescope monochromatic point spread functions
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Abstract
A mixture of off-centred 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 centring and convolution-deconvolution problems.
Key words
HST point spread function—image centring—image deconvolutionPreview
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© Indian Academy of Sciences 1987