THE gamma-RAY DETECTED NARROW-LINE SEYFERT 1 GALAXY 1H 0323+342: SWIFT MONITORING AND SUZAKU SPECTROSCOPY

	THE gamma-RAY DETECTED NARROW-LINE SEYFERT 1 GALAXY 1H 0323+342: SWIFT MONITORING AND SUZAKU SPECTROSCOPY
	Yao, Su 1; Yuan, Weimin1 ; Komossa, S.1,2; Grupe, Dirk 3,4; Fuhrmann, L.2; Liu, Bifang1
刊名	ASTRONOMICAL JOURNAL
	2015-07-01
卷号	150 期号:1
关键词	galaxies: active galaxies: individual (1H 0323+342) galaxies: peculiar galaxies: Seyfert
英文摘要	As a radio-loud narrow-line Seyfert 1 galaxy (NLS1) detected by Fermi/LAT in GeV gamma-rays, 1H 0323+342 is a remarkable active galactic nucleus showing properties characteristic of both NLS1s and blazars. Here we present results of simultaneous X-ray and UV/optical monitoring observations on 1H 0323+342 taken with the UV/Optical Telescope and X-ray Telescope onboard the Swift satellite over six years from 2006. Overall, the object showed statistically correlated variations in both the UV and X-ray bands on timescales of years as well as on timescales of days. A deep Suzaku observation reveals X-ray variability on timescales as short as a few tens of thousand seconds, and an X-ray spectrum typical of Seyfert galaxies. The broadband spectral energy distribution, for which the data of UV and X-ray observations taken on 2009 July 26-27 were used, can be well modeled with a simple one-zone leptonic jet model plus accretion disk/corona emission. The latter is predominantly responsible for the UV/optical and X-ray (0.3-10 keV) emission and their observed variations. The correlated UV-X-ray variability on the timescale of days is consistent with reprocessing of the X-ray radiation by the accretion disk. The shortest timescale and large normalized excess variance of the X-ray variability detected with Suzaku suggest a relatively small black hole mass of the order of 10(7) M-circle dot, consistent with the estimation based on the broad H beta line in the optical.
收录类别	SCI
语种	英语
WOS记录号	WOS:000357744400023
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5657]
专题	国家天文台_空间科学研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing, Peoples R China 2.Max Planck Inst Radioastron, D-53121 Bonn, Germany 3.Morehead State Univ, Ctr Space Sci, Morehead, KY 40351 USA 4.Swift Mission Operat Ctr, State Coll, PA 16801 USA
推荐引用方式 GB/T 7714	Yao, Su,Yuan, Weimin,Komossa, S.,et al. THE gamma-RAY DETECTED NARROW-LINE SEYFERT 1 GALAXY 1H 0323+342: SWIFT MONITORING AND SUZAKU SPECTROSCOPY[J]. ASTRONOMICAL JOURNAL,2015,150(1).
APA	Yao, Su,Yuan, Weimin,Komossa, S.,Grupe, Dirk,Fuhrmann, L.,&Liu, Bifang.(2015).THE gamma-RAY DETECTED NARROW-LINE SEYFERT 1 GALAXY 1H 0323+342: SWIFT MONITORING AND SUZAKU SPECTROSCOPY.ASTRONOMICAL JOURNAL,150(1).
MLA	Yao, Su,et al."THE gamma-RAY DETECTED NARROW-LINE SEYFERT 1 GALAXY 1H 0323+342: SWIFT MONITORING AND SUZAKU SPECTROSCOPY".ASTRONOMICAL JOURNAL 150.1(2015).