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Swift monitoring and Suzaku spectroscopy of the γ-ray detected narrow-line Seyfert 1 galaxy 1H 0323+342

Published online by Cambridge University Press:  07 March 2016

S. Yao ,
W. Yuan ,
S. Komossa ,
D. Grupe ,
L. Fuhrmann  and
B. Liu
S. Yao
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China email: yaosu@nao.cas.cn
W. Yuan
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China email: yaosu@nao.cas.cn
S. Komossa
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China email: yaosu@nao.cas.cn Max-Planck Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
D. Grupe
Affiliation:
Space Science Center, Morehead State University, Morehead, KY, 40351 Swift Mission Operation Center, 2582 Gateway Dr. State College, PA, 16801, USA
L. Fuhrmann
Affiliation:
Max-Planck Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
B. Liu
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China email: yaosu@nao.cas.cn
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Abstract

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1H 0323+342 is one of the rare γ-ray detected narrow-line Seyfert 1 galaxies (NLS1s), a special subset of active galactic nuclei (AGN) owing to their hybrid behavior of both NLS1s and blazars. The rarity of such kind of sources makes their properties far from being understood. We analyze simultaneous X-ray and UV/optical monitoring observations of 1H 0323+342 performed by Swift over ~7 years. The UV/X-ray correlation and the broad band SED reveal that the X-ray band is dominated by the disk/corona emission during the observations. The large normalized excess variance of the X-ray variability detected with Suzaku suggests a relatively small black hole mass of the order of 107M⊙, consistent with the estimation based on the broad Hβ line in the optical band.

Keywords

galaxies: active — quasars: individual (1H 0323+342) — galaxies: particular — galaxies: jets — X-rays: galaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S312: Star Clusters and Black Holes in Galaxies across Cosmic Time , August 2014 , pp. 66 - 67
Copyright
Copyright © International Astronomical Union 2016 

References

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