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Does the Black Hole Rotation Lead to Higher X-Ray Variability in the Narrow-Line Objects?

Published online by Cambridge University Press:  26 May 2016

W. Bian  and
Y. Zhao
W. Bian
Affiliation:
Department of Physics, Nanjing Normal University, Nanjing 210097, China National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
Y. Zhao
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China

Abstract

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This paper presents a analysis of X-ray variability for a assembled sample of broad-line Seyfert 1, narrow-lines Seyfert 1 galaxies and QSOs observed by ASCA, whose central black masses have been estimated. We find the significant relation between X-ray variability and the central black masses is different for Broad-line and Narrow-lines galaxies. The higher excess variance of narrow-line galaxies can be explained that they have smaller size of X-ray emission region compare to the broad-line objects. Our findings favor the hypothesis that the narrow-line galaxies have rotational black hole and hence maybe have the jets.

Type
Part 8 Active Galaxies and their Nuclei
Information
Symposium - International Astronomical Union , Volume 214: High Energy Processes and Phenomena in Astrophysics , 2003 , pp. 287 - 288
Copyright
Copyright © Astronomical Society of the Pacific 2003 

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