Dereddening of optical/UV spectra of active galactic nuclei

Details Dereddening of optical/UV spectra of active galactic nuclei Dereddening of optical/UV spectra of active galactic nuclei

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aca....43..193l&link_type=abstract

Acta Astronomica, vol. 43, no. 3, p. 193-207

Astronomy and Astrophysics

Astronomy

1

Active Galactic Nuclei, Cosmic Dust, Interstellar Matter, Ultraviolet Spectra, Astronomical Models, Interstellar Extinction, Radiative Transfer

Scientific paper

The study of the shape of the optical/UV spectrum of an intrinsic nuclear source requires the removal of the effects caused by transmission of the radiation through the dust. There are arguments that the chemical composition of the circumnuclear dust and the distribution of the grain sizes are significantly different from what we know about the interstellar dust. Nonstandard model-dependent extinction curves have to be used. Here we show the dependence of the new extinction curves on model parameters and discuss the consequences of applying nonstandard extinction for the reproduction of intrinsic spectral slopes of active galactic nuclei.

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