UNSHIFTED METASTABLE He I* MINI-BROAD ABSORPTION LINE SYSTEM IN THE NARROW-LINE TYPE 1 QUASAR SDSS J080248.18+551328.9
文献类型：期刊论文
| 作者 | Ji, T1,2,3; Zhou, HY1,2,3; Jiang, P1,2,3; Wang, TG1,2,3; Ge, J4; Wang, HY1,2,3; Komossa, S5,6,7; Hamann, F4; Zuther, J8; Liu, WJ1,2,3 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2015-02-10 |
| 卷号 | 800期号:1 |
| 关键词 | quasars: absorption lines quasars: emission lines quasars: individual (SDSS J080248.18+551328.9) |
| ISSN号 | 0004-637X |
| 产权排序 | 第十完成单位 |
| 通讯作者 | Ji, T (reprint author), Polar Res Inst China, 451 Jinqiao Rd, Shanghai 200136, Peoples R China. |
| 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 |
| 学科主题 | Astronomy & Astrophysics |
| 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 |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-637X/800/1/56/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000349236900056 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5047]  |
| 专题 | 云南天文台_高能天体物理研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Polar Research Institute of China, 451 Jinqiao Road, Pudong, Shanghai 200136, China 2.Key Laboratory for Research in Galaxies and Cosmology, The University of Science and Technology of China, Chinese Academy of Sciences, Hefei, Anhui, 230026, China 3.Center for Astrophysics, University of Science and Technology of China, Hefei, Anhui, 230026, China 4.Department of Astronomy, University of Florida, Gainesville, FL 32611, USA 5.National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Beijing 100012, China 6.Excellence Cluster Universe, Technische Universitaet Muenchen, Boltzmannstrasse 2, D-85748 Garching, Germany 7.Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, D-53121 Bonn, Germany 8.Physikalisches Institut, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany 9.Shanghai Astronomical Observatory, Nandan Road 80, Shanghai 200030, China 10.National Astronomical Observatories/Yunnan Observatory and Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Ji, T,Zhou, HY,Jiang, P,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). |
| APA | Ji, T.,Zhou, HY.,Jiang, P.,Wang, TG.,Ge, J.,...&Liu, Wenjuan.(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). |
| MLA | Ji, T,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). |
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来源：云南天文台
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