http://arxiv.org/abs/1707.08251
Here we investigate the H$\beta$ and Mg II spectral line parameters used for the black hole mass (M${\rm BH}$) estimation for a sample of Type 1 Active Galactic Nuclei (AGN) spectra selected from the Sloan Digital Sky Survey (SDSS) database. We have analyzed and compared the virialization of the H$\beta$ and Mg II emission lines, and found that the H$\beta$ line is more confident virial estimator than Mg II. We have investigated the influence of the Balmer continuum emission to the M${\rm BH}$ estimation from the UV parameters, and found that the Balmer continuum emission can contribute to the overestimation of the M$_{\rm BH}$ on average for ~ 5% (up to 10%).
J. Kovacevic-Dojcinovic, S. Marceta-Mandic and L. Popovic
Thu, 27 Jul 17
39/49
Comments: 9 pages, 3 figures, Accepted for publication in Frontiers in Astronomy and Space Sciences