| METAL-ENRICHED OUTFLOWS IN THE ULTRALUMINOUS INFRARED QUASAR Q1321+058 | |
Wang, TG1,4; Zhou, HY1,2; Yuan WM(袁为民)3 ; Lu, HL1; Dong, XB1,4; Dan HG(单红光)3,4; Wang, TG (reprint author), Univ Sci & Technol China, Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Ctr Astrophys, Hefei 230026, Anhui, Peoples R China.
| |
| 发表期刊 | ASTROPHYSICAL JOURNAL
 |
| 2009-09-10 | |
| 卷号 | 702期号:2页码:851-861 |
| DOI | 10.1088/0004-637X/702/2/851 |
| 产权排序 | 第3完成单位 |
| 收录类别 | SCI |
| 关键词 | Galaxies: Nuclei Galaxies: Starburst Quasars: Emission Lines |
| 摘要 | Quasar outflows may play important role in the evolution of its host galaxy and central black hole, and are most often studied in absorption lines. In this paper, we present a detailed study of multiple outflows in the obscured ultraluminous infrared quasar Q1321+058. The outflows reveal themselves in the complex optical and ultraviolet (UV) emission-line spectrum, with a broad component blueshifted by 1650 km s(-1) and a narrow component by 360 km s(-1), respectively. The higher velocity component shows ever strong N III] (N III]/C III] = 3.8 +/- 0.3 and N III]/C IV = 0.53) and strong Si III] (Si III]/C III] similar or equal to 1), in addition to strong [O III]lambda 5007 and [Ne III]lambda 3869 emission. A comparison of these line ratios with photoionization models suggests an overabundance of N and Si relative to C. The abundance pattern is consistent with a fast chemical enriching process associated with a recent starburst, triggered by a recent galaxy merger. The outflow extends to several tens to hundred parsecs from the quasar, and covers only a very small sky. We find that the outflow with line emitting gas is energetically insufficient to remove the interstellar medium of the host galaxy, but total kinetic energy may be much larger than suggested by the emission lines. The velocity range and the column density suggest that the outflow might be part of the low-ionization broad absorption line region as seen in a small class of quasars. The optical and UV continuum is starlight dominated and can be modeled with a young-aged (1 Myr) plus an intermediate-aged (similar to 0.5-1 Gyr) stellar populations, suggesting a fast building of the stellar mass in the host galaxy, consistent with the starburst-type metal abundances inferred from the high-velocity outflow spectrum. The broadband spectral energy distribution shows that it is an obscured quasar with its bulk emission in the middle infrared. The star formation rate, independently estimated from UV, far-infrared, and emission-line luminosity, is much lower than that is required for the co-evolution of the black hole and its host spheroid. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:000269245000004 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | NARROW-LINE REGION ; ACTIVE GALACTIC NUCLEI ; SPECTRAL ENERGY-DISTRIBUTIONS ; BROAD ABSORPTION-LINE ; STAR-FORMING GALAXIES ; DIGITAL SKY SURVEY ; HOST GALAXIES ; EMISSION-LINE ; STELLAR OBJECTS ; MIDINFRARED SPECTROSCOPY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4977 |
| 专题 | 高能天体物理研究组 |
| 通讯作者 | Wang, TG (reprint author), Univ Sci & Technol China, Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Ctr Astrophys, Hefei 230026, Anhui, Peoples R China. |
| 作者单位 | 1.Key Laboratory for Research in Galaxies and Cosmology, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, Anhui, 230026, China 2.Department of Astronomy, University of Florida, Gainesville, FL 32611, USA 3.Yunnan Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650011, China 4.Center for Astrophysics, University of Science and Technology of China, Hefei, Anhui, 230026, China |
| 推荐引用方式 GB/T 7714 | Wang, TG,Zhou, HY,Yuan WM,et al. METAL-ENRICHED OUTFLOWS IN THE ULTRALUMINOUS INFRARED QUASAR Q1321+058[J]. ASTROPHYSICAL JOURNAL,2009,702(2):851-861. |
| APA | Wang, TG.,Zhou, HY.,Yuan WM.,Lu, HL.,Dong, XB.,...&Wang, TG .(2009).METAL-ENRICHED OUTFLOWS IN THE ULTRALUMINOUS INFRARED QUASAR Q1321+058.ASTROPHYSICAL JOURNAL,702(2),851-861. |
| MLA | Wang, TG,et al."METAL-ENRICHED OUTFLOWS IN THE ULTRALUMINOUS INFRARED QUASAR Q1321+058".ASTROPHYSICAL JOURNAL 702.2(2009):851-861. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| METAL-ENRICHED OUTFL（752KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论