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The optical spectral index vs. luminosity relation in AGN and one of its implications

Published online by Cambridge University Press:  24 November 2004

A. Garcia-Rissmann
A. Garcia-Rissmann
Affiliation:
Departamento de Física, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil email: [email protected]
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Abstract

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Spectroscopic optical data (∼4200-6300 Å in the rest-frame) acquired during the monitoring of some QSOs seem to confirm that AGN spectra normally harden at higher luminosities. Focusing only on the global trend (i.e. comparing different objects), the implications in deriving luminosities using optical photometric data (through the K-correction) is briefly outlined here, as well as the result of its parameterization for calculating BH masses through the M$_{BH} \propto$ L$_V^\gamma$ (FWHM Hβ)2 virial relation.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
POSTERS
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS222 , March 2004 , pp. 93 - 94
Copyright
© 2004 International Astronomical Union