THE COMPACT RADIO STRUCTURE OF RADIO-LOUD NARROW LINE SEYFERT 1 GALAXIES

	THE COMPACT RADIO STRUCTURE OF RADIO-LOUD NARROW LINE SEYFERT 1 GALAXIES
	Gu, Minfeng1,2 ; Chen, Yongjun1
刊名	ASTRONOMICAL JOURNAL
	2010-06-01
卷号	139 期号:6 页码:2612-2619
关键词	galaxies: active galaxies: jets galaxies: Seyfert radio continuum: galaxies
英文摘要	We present the compact radio structure of three radio-loud narrow line Seyfert 1 galaxies from the Very Long Baseline Array archive data at 2.3, 5, and 8.4 GHz. In RXS J16290+4007, the radio structure is mostly unresolved. The combination of compact radio structure, high brightness temperature, and inverted spectrum between simultaneous 2.3 and 8.4 GHz strongly favors jet relativistic beaming. Combined with the very long baseline interferometry data at 1.6 and 8.4 GHz from the literature, we argue that RXS J16333+4718 also may harbor a relativistic jet, with resolved core-jet structure in 5 GHz. B3 1702+457 is clearly resolved with a well-defined jet component. The overall radio steep spectrum indicates that B3 1702+457 is likely a source optically defined as NLS1 with radio definition of compact steep spectrum sources. From these three sources, we found that radio loud NLS1s can be either intrinsically radio loud (e. g., B3 1702+457) or apparently radio loud due to jet beaming effects (e. g., RXS J16290+4007 and RXS J16333+4718).
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	ACTIVE GALACTIC NUCLEI ; X-RAY-PROPERTIES ; SPECTRAL ENERGY-DISTRIBUTIONS ; HIGH-FREQUENCY PEAKERS ; DIGITAL SKY SURVEY ; BLACK-HOLE MASS ; BRIGHTNESS TEMPERATURE ; EDDINGTON RATIO ; STEEP-SPECTRUM ; PMN J0948+0022
收录类别	SCI
语种	英语
WOS记录号	WOS:000277643700040
公开日期	2011-06-29
内容类型	期刊论文
源URL	[http://119.78.226.72//handle/331011/13397]
专题	上海天文台_星系宇宙学重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
推荐引用方式 GB/T 7714	Gu, Minfeng,Chen, Yongjun. THE COMPACT RADIO STRUCTURE OF RADIO-LOUD NARROW LINE SEYFERT 1 GALAXIES[J]. ASTRONOMICAL JOURNAL,2010,139(6):2612-2619.
APA	Gu, Minfeng,&Chen, Yongjun.(2010).THE COMPACT RADIO STRUCTURE OF RADIO-LOUD NARROW LINE SEYFERT 1 GALAXIES.ASTRONOMICAL JOURNAL,139(6),2612-2619.
MLA	Gu, Minfeng,et al."THE COMPACT RADIO STRUCTURE OF RADIO-LOUD NARROW LINE SEYFERT 1 GALAXIES".ASTRONOMICAL JOURNAL 139.6(2010):2612-2619.