Uncertainties of the masses of black holes and Eddington ratios in AGN
Abstract
Black hole masses in Active Galactic Nuclei have been determined in 35 objects through reverberation mapping of the emission line region. I mention some uncertainties of the method, such as the "scale factor" relating the Virial Product to the mass, which depends on the unknown structure and dynamics of the Broad Line Region.
- Publication:
-
Black Holes from Stars to Galaxies -- Across the Range of Masses
- Pub Date:
- April 2007
- DOI:
- arXiv:
- arXiv:astro-ph/0612098
- Bibcode:
- 2007IAUS..238..111C
- Keywords:
-
- Quasars: general;
- galaxies: active;
- Astrophysics
- E-Print:
- 5 pages, 2 figures. To appear in the proceedings of "Black Holes: from Stars to Galaxies", IAU Symp. No. 238, V. Karas &