Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-24T21:58:48.975Z Has data issue: false hasContentIssue false
  • English
  • Français

A Photoionization Method for Estimating Black Hole Masses in Quasars

Published online by Cambridge University Press:  07 April 2020

C. Alenka Negrete ,
Deborah Dultzin ,
Paola Marziani Open the ORCID record for Paola Marziani [Opens in a new window] ,
Jack W. Sulentic  and
M. L. Martínez-Aldama
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present a method that uses photoionization codes (CLOUDY) to estimate the supermassive black hole masses (MBH) for quasars at low and high redshift. This method is based on the determination of the physical conditions of the broad line region (BLR) using observational diagnostic diagrams from line ratios in the UV. We also considered that the density and metallicity of the BLR in quasars at high z could be different from those at the nearby Universe. The computed black hole masses obtained using this method are in agreement with those derived from the method of reverberation mapping.

Keywords

galaxies: activequasars: generalquasars: emission lines
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S342: Perseus in Sicily: From Black Hole to Cluster Outskirts , May 2018 , pp. 270 - 271
Copyright
© International Astronomical Union 2020

References

Bentz, M. C., et al. 2009, ApJL, 694, L166CrossRefGoogle Scholar
Ferland, G. J., et al. 2013, RevMexA&Ap, 49, 137Google Scholar
Kriss, G. 1994, A.S.P. Conference Series, 61, 437CrossRefGoogle Scholar
Mathews, W. G., & Ferland, G. J. 1987, ApJ, 323, 456CrossRefGoogle Scholar
Negrete, C. A., Dultzin, D., Marziani, P., & Sulentic, J. 2012, ApJ, 757, 62CrossRefGoogle Scholar
Negrete, C. A., Dultzin, D., Marziani, P., & Sulentic, J. W. 2013, ApJ, 771, 31CrossRefGoogle Scholar
Negrete, C. A., Dultzin, D., Marziani, P., & Sulentic, J. W. 2014, ApJ, 794, 95CrossRefGoogle Scholar
Sani, E.et al. 2010, MNRAS, 403, 1246CrossRefGoogle Scholar
Sulentic, J. W., del Olmo, A., Marziani, P., et al. 2017, A&A, 608, 122Google Scholar
Vestergaard, M., & Peterson, B. M. 2006, ApJ, 641, 689CrossRefGoogle Scholar