Multiple-wavelength Variability and Quasi-periodic Oscillation of PMN J0948+0022

doi:10.3847/1538-4357/aa8b7a

	Multiple-wavelength Variability and Quasi-periodic Oscillation of PMN J0948+0022
	Zhang, Hai-Ming 1; Zhu, Yong-Kai 1; Yi, Ting-Feng 2; Liang, En-Wei 1; Yao, Su 3; Lu, Rui-Jing 1; Zhang, Jin1,4
刊名	ASTROPHYSICAL JOURNAL
	2017-11-01
卷号	849 期号:1
关键词	Galaxies: Individual (Pmn j0948+0022) Galaxies: Jets Galaxies: Seyfert Gamma Rays: Galaxies
DOI	10.3847/1538-4357/aa8b7a
文献子类	Article
英文摘要	We present a comprehensive analysis of multiple-wavelength observational data of the first GeV-selected narrow-line Seyfert 1 galaxy PMN J0948+0022. We derive its light curves in the gamma-ray and X-ray bands from the data observed with Fermi/LAT and Swift/XRT, and generate the optical and radio light curves by collecting the data from the literature. These light curves show significant flux variations. With the LAT data we show that this source is analogous to typical flat spectrum radio quasars in the L-gamma-Gamma(gamma) plane, where L-gamma and Gamma(gamma) are the luminosity and spectral index in the LAT energy band. The gamma-ray flux is correlated with the V-band flux with a lag of similar to 44 days, and a moderate quasi-periodic oscillation (QPO) with a periodicity of similar to 490 days observed in the LAT light curve. A similar QPO signature is also found in the V-band light curve. The gamma-ray flux is not correlated with the radio flux in 15 GHz, and no similar QPO signature is found at a confidence level of 95%. Possible mechanisms of the QPO are discussed. We propose that gravitational-wave observations in the future may clarify the current plausible models for the QPO.
WOS关键词	LINE SEYFERT 1 ; ACTIVE GALACTIC NUCLEI ; SUPERMASSIVE BLACK-HOLES ; TIME TRANSIENT SURVEY ; RADIO-LOUD ; FLARING ACTIVITY ; HELICAL JETS ; BL-LACERTAE ; SPACED DATA ; RED NOISE
WOS研究方向	Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000413865300013
资助机构	NASA(NNX08AW31G ; NASA(NNX08AW31G ; NSF(AST-0808050 ; NSF(AST-0808050 ; National Natural Science Foundation of China(11573034 ; National Natural Science Foundation of China(11573034 ; National Basic Research Program (973 Programme) of China(2014CB845800) ; National Basic Research Program (973 Programme) of China(2014CB845800) ; Guangxi Science Foundation(2013GXNSFFA019001 ; Guangxi Science Foundation(2013GXNSFFA019001 ; KIAA-CAS ; KIAA-CAS ; Boya-PKU ; Boya-PKU ; Guangxi Science Foundation ; Guangxi Science Foundation ; NNX11A043G ; NNX11A043G ; AST-1109911) ; AST-1109911) ; 11533003 ; 11533003 ; 2014GXNS FAA118011) ; 2014GXNS FAA118011) ; NNX14AQ89G) ; NNX14AQ89G) ; 11363002 ; 11363002 ; 11373036 ; 11373036 ; 11463001 ; 11463001 ; U1731239) ; U1731239) ; NASA(NNX08AW31G ; NASA(NNX08AW31G ; NSF(AST-0808050 ; NSF(AST-0808050 ; National Natural Science Foundation of China(11573034 ; National Natural Science Foundation of China(11573034 ; National Basic Research Program (973 Programme) of China(2014CB845800) ; National Basic Research Program (973 Programme) of China(2014CB845800) ; Guangxi Science Foundation(2013GXNSFFA019001 ; Guangxi Science Foundation(2013GXNSFFA019001 ; KIAA-CAS ; KIAA-CAS ; Boya-PKU ; Boya-PKU ; Guangxi Science Foundation ; Guangxi Science Foundation ; NNX11A043G ; NNX11A043G ; AST-1109911) ; AST-1109911) ; 11533003 ; 11533003 ; 2014GXNS FAA118011) ; 2014GXNS FAA118011) ; NNX14AQ89G) ; NNX14AQ89G) ; 11363002 ; 11363002 ; 11373036 ; 11373036 ; 11463001 ; 11463001 ; U1731239) ; U1731239)
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/20193]
专题	国家天文台_空间科学研究部
作者单位	1.Guangxi Univ, Dept Phys, Guangxi Key Lab Relativist Astrophys, Nanning 530004, Peoples R China 2.Yunnan Normal Univ, Dept Phys, Kunming 650500, Yunnan, Peoples R China 3.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hai-Ming,Zhu, Yong-Kai,Yi, Ting-Feng,et al. Multiple-wavelength Variability and Quasi-periodic Oscillation of PMN J0948+0022[J]. ASTROPHYSICAL JOURNAL,2017,849(1).
APA	Zhang, Hai-Ming.,Zhu, Yong-Kai.,Yi, Ting-Feng.,Liang, En-Wei.,Yao, Su.,...&Zhang, Jin.(2017).Multiple-wavelength Variability and Quasi-periodic Oscillation of PMN J0948+0022.ASTROPHYSICAL JOURNAL,849(1).
MLA	Zhang, Hai-Ming,et al."Multiple-wavelength Variability and Quasi-periodic Oscillation of PMN J0948+0022".ASTROPHYSICAL JOURNAL 849.1(2017).