UNSHIFTED METASTABLE He I* MINI-BROAD ABSORPTION LINE SYSTEM IN THE NARROW-LINE TYPE 1 QUASAR SDSS J080248.18+551328.9

	*UNSHIFTED METASTABLE He I MINI-BROAD ABSORPTION LINE SYSTEM IN THE NARROW-LINE TYPE 1 QUASAR SDSS J080248.18+551328.9**
	Ji, Tuo 1,2,3; Zhou, Hongyan 1,2,3; Jiang, Peng 1,2,3; Wang, Tinggui 1,2,3; Ge, Jian 4; Wang, Huiyuan 1,2,3; Komossa, S.5,6,7; Hamann, Fred 4; Zuther, Jens 8; Liu, Wenjuan 1,2,3
刊名	ASTROPHYSICAL JOURNAL
	2015-02-10
卷号	800 期号:1 页码:1
关键词	quasars: absorption lines quasars: emission lines quasars: individual (SDSS J080248.18+551328.9)
英文摘要	We report the identification of an unusual absorption-line system in the quasar SDSS J080248.18+551328.9 and present a detailed study of the system, incorporating follow-up optical and near-IR spectroscopy. A few tens of absorption lines are detected, including He I, Fe II, and Ni II*, which arise from metastable or excited levels, as well as resonant lines in Mg I, Mg II, Fe II, MnII, and Ca II. All of the isolated absorption lines show the same profile of width Delta v similar to 1500 km s(-1) centered at a common redshift as that of the quasar emission lines, such as [O II], [S II], and hydrogen Paschen and Balmer series. With narrow Balmer lines, strong optical Fe II multiplets, and weak [O III] doublets, its emission-line spectrum is typical for that of a narrow-line Seyfert 1 galaxy (NLS1). We have derived reliable measurements of the gas-phase column densities of the absorbing ions/levels. Photoionization modeling indicates that the absorber has a density of n(H) similar to (1.0-2.5) x 10(5) cm(-3) and a column density of N-H similar to (1.0-3.2) x 10(21) cm(-2) and is located at R similar to 100-250 pc from the central supermassive black hole. The location of the absorber, the symmetric profile of the absorption lines, and the coincidence of the absorption- and emission-line centroid jointly suggest that the absorption gas originates from the host galaxy and is plausibly accelerated by stellar processes, such as stellar winds and/or supernova explosions. The implications for the detection of such a peculiar absorption-line system in an NLS1 are discussed in the context of coevolution between supermassive black hole growth and host galaxy buildup.
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 ; DIGITAL SKY SURVEY ; SPECTRAL ENERGY-DISTRIBUTIONS ; LARGE TELESCOPE OBSERVATIONS ; STAR-FORMATION ; DATA RELEASE ; SEYFERT-1 GALAXIES ; STELLAR POPULATION ; HOST GALAXIES ; MOLECULAR GAS
收录类别	SCI
语种	英语
WOS记录号	WOS:000349236900056
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/18202]
专题	上海天文台_星系宇宙学重点实验室
作者单位	1.Polar Res Inst China, Shanghai 200136, Peoples R China 2.Chinese Acad Sci, Univ Sci & Technol China, Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China 3.Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Anhui, Peoples R China 4.Univ Florida, Dept Astron, Gainesville, FL 32611 USA 5.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 6.Tech Univ Munich, Excellence Cluster Universe, D-85748 Garching, Germany 7.Max Planck Inst Radioastron, D-53121 Bonn, Germany 8.Univ Cologne, Inst Phys, D-50937 Cologne, Germany 9.Shanghai Astron Observ, Shanghai 200030, Peoples R China 10.Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China
推荐引用方式 GB/T 7714	Ji, Tuo,Zhou, Hongyan,Jiang, Peng,et al. UNSHIFTED METASTABLE He I* MINI-BROAD ABSORPTION LINE SYSTEM IN THE NARROW-LINE TYPE 1 QUASAR SDSS J080248.18+551328.9[J]. ASTROPHYSICAL JOURNAL,2015,800(1):1.
APA	Ji, Tuo.,Zhou, Hongyan.,Jiang, Peng.,Wang, Tinggui.,Ge, Jian.,...&Yuan, Weimin.(2015).UNSHIFTED METASTABLE He I* MINI-BROAD ABSORPTION LINE SYSTEM IN THE NARROW-LINE TYPE 1 QUASAR SDSS J080248.18+551328.9.ASTROPHYSICAL JOURNAL,800(1),1.
MLA	Ji, Tuo,et al."UNSHIFTED METASTABLE He I* MINI-BROAD ABSORPTION LINE SYSTEM IN THE NARROW-LINE TYPE 1 QUASAR SDSS J080248.18+551328.9".ASTROPHYSICAL JOURNAL 800.1(2015):1.