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

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

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004iaus..222...93g&link_type=abstract

The Interplay among Black Holes, Stars and ISM in Galactic Nuclei, Proceedings of IAU Symposium, No. 222. Edited by T. Storchi-B

Computer Science

Scientific paper

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 MBH ∝ LVγ (FWHM Hβ)2 virial relation.

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