The radio-loud narrow-line quasar SDSS J172206.03+565451.6
文献类型：期刊论文
| 作者 | Komossa, S; Voges, W; Adore, HM; Xu, DW ; Mathur, S; Anderson, SF
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2006-03-10 |
| 卷号 | 639期号:2页码:710-715 |
| 关键词 | quasars : emission lines quasars : general quasars : individual (SDSS J172206.03+565451.6) radio continuum : galaxies X-rays : galaxies |
| 英文摘要 | We report identification of the radio-loud narrow-line quasar SDSS J172206.03+565451.6, which we found in the course of a search for radio-loud narrow-line active galactic nuclei (AGNs). SDSS J172206.03+565451.6 is only about the fourth securely identified radio-loud narrow-line quasar and the second-most radio loud, with a radio index R-1.4 approximate to 100-700. Its black hole mass, M-BH similar or equal to (2-3) x 10(7) M-circle dot estimated from H beta line width and 5100 angstrom luminosity, is unusually small given its radio loudness, and the combination of mass and radio index puts SDSS J172206.03+ 565451.6 in a scarcely populated region of M-BH-R diagrams. SDSS J172206.03+ 565451.6 is a classical narrow-line Seyfert 1-type object with FWHMH beta similar or equal to 1490 km s(-1), an intensity ratio of [O III]/H beta similar or equal to 0: 7, and Fe II emission complexes with Fe II lambda 4570/H beta similar or equal to 0: 7. The ionization parameter of its narrow-line region, estimated from the line ratio [O II]/[O III], is similar to Seyferts, and its high ratio of [Ne V]/[Ne III] indicates a strong EUV-to-soft X-ray excess. We advertise the combined usage of [O II]/[O III] and [Ne v]/[Ne III] diagrams as a useful diagnostic tool to estimate ionization parameters and to constrain the EUV-soft X-ray continuum shape relatively independently from other parameters. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235837100011 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7115]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Max Planck Inst Extraterr Phys, D-85741 Garching, Germany 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.Ohio State Univ, Dept Astron, Columbus, OH 43210 USA 4.Univ Washington, Dept Astron, Seattle, WA 98195 USA |
| 推荐引用方式 GB/T 7714 | Komossa, S,Voges, W,Adore, HM,et al. The radio-loud narrow-line quasar SDSS J172206.03+565451.6[J]. ASTROPHYSICAL JOURNAL,2006,639(2):710-715. |
| APA | Komossa, S,Voges, W,Adore, HM,Xu, DW,Mathur, S,&Anderson, SF.(2006).The radio-loud narrow-line quasar SDSS J172206.03+565451.6.ASTROPHYSICAL JOURNAL,639(2),710-715. |
| MLA | Komossa, S,et al."The radio-loud narrow-line quasar SDSS J172206.03+565451.6".ASTROPHYSICAL JOURNAL 639.2(2006):710-715. |
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来源：国家天文台
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