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The Detectability of Seyfert 2 Galaxies with Hidden Broad-Line Regions

Published online by Cambridge University Press:  01 August 2006

W. Bian
W. Bian*
Affiliation:
Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210097, China Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China
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The detectability of Seyfert 2 galaxies (Sy2s) with hidden broad-line regions(HBLRs) is still a question open to debate. Using a large sample of 90 Seyfert 2 galaxies (Sy2s) with spectropolarimetric observations (Gu & Huang 2002), we tested the suggestion that the presence of hidden broad-line regions (HBLRs) in Sy2s is dependent upon the Eddington ratio (Nicastro et al. 2003). The stellar velocity dispersion and the extinction-corrected [O III] luminosity are used to derive the masses of central super-massive black holes and the Eddington ratios. The main conclusion are summarized as follows.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 77
Copyright
Copyright © International Astronomical Union 2007

References

Bian, W. & Gu, Q. 2006, ApJ, submittedGoogle Scholar
Gu, Q. & Huang, J. 2002, ApJ 579, 205CrossRefGoogle Scholar
Nicastro, F., Martocchia, A., Matt, G. 2003, ApJ 589, L13CrossRefGoogle Scholar