Deconvolution of photographic images of quasars from point spread functions

Details Deconvolution of photographic images of quasars from point spread functions Deconvolution of photographic images of quasars from point spread functions

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...138..337b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 138, no. 2, Sept. 1984, p. 337-342.

Astronomy and Astrophysics

Astrophysics

8

Astronomical Photography, Galactic Nuclei, Point Spread Functions, Quasars, Astronomical Photometry, Brightness Distribution, Point Sources, Red Shift

Scientific paper

The authors present a reliable method, based on the use of a priori information and on Tikhonov's regularization of unstable inverse problems, for the deconvolution of quasar and distant galactic nuclei from point spread function. The application to four quasars: 3C273, PKS2135+147, 3C206, and PKS0812+020, chosen as representative members of the low red-shift quasar sample of Wyckoff et al., 1981, shows that the deconvolved photometric structure of the region surrounding the central point-like source is very similar, if suitably corrected, to that of a set of well studied gE and cD galaxies.

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