A method for nuclear-component deconvolution in active galaxies

Details A method for nuclear-component deconvolution in active galaxies A method for nuclear-component deconvolution in active galaxies

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.310..117s&link_type=abstract

Monthly Notices, Volume 310, Issue 1, pp. 117-122.

Astronomy and Astrophysics

Astronomy

1

Methods: Data Analysis, Techniques: Image Processing, Galaxies: Active, Galaxies: Nuclei, Galaxies: Photometry

Scientific paper

A new method for deconvolution of the nuclear component of active galaxies is presented, along with some initial results with several nuclear-type objects. Unlike the majority of procedures currently in use, this method is based on the following steps: (a) derivation of seeing-free bulge and disc parameters, (b) construction of a two-dimensional model of the galaxy, (c) derivation of a point-spread function (PSF) from star profiles and convolution of the bulge+disc model with the obtained PSF and (d) extraction of the seeing-convolved model radial profile and subtraction from the observed one. The residual gives the nuclear component. Only standard image processing packages are used.

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