A KILOPARSEC-SCALE BINARY ACTIVE GALACTIC NUCLEUS CONFIRMED BY THE EXPANDED VERY LARGE ARRAY
文献类型：期刊论文
| 作者 | Fu, Hai1; Zhang, Zhi-Yu2,3,4; Assef, Roberto J.5; Stockton, Alan6; Myers, Adam D.7,8; Yan, Lin9; Djorgovski, S. G.1; Wrobel, J. M.10; Riechers, Dominik A.1 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2011-10-20 |
| 卷号 | 740期号:2页码:L44(5) |
| 关键词 | galaxies: active galaxies: individual (SDSS J150243.1+111557) galaxies: interactions galaxies: nuclei |
| ISSN号 | 2041-8205 |
| 英文摘要 | We report the confirmation of a kiloparsec-scale binary active galactic nucleus (AGN) with high-resolution radio images from the Expanded Very Large Array (EVLA). SDSS J150243.1+111557 is a double-peaked [O III] AGN at z = 0.39 selected from the Sloan Digital Sky Survey. Our previous near-infrared adaptive optics imaging reveals two nuclei separated by 1.'' 4 (7.4 kpc), and our optical integral-field spectroscopy suggests that they are a type-1-type-2 AGN pair. However, these data alone cannot rule out the single AGN scenario where the narrow emission-line region associated with the secondary is photoionized by the broad-line AGN in the primary. Our new EVLA images at 1.4, 5.0, and 8.5 GHz show two steep-spectrum compact radio sources spatially coincident with the optical nuclei. The radio power of the type-2 AGN is an order-of-magnitude in excess of star-forming galaxies with similar extinction-corrected [O II] lambda 3727 luminosities, indicating that the radio emission is powered by accretion. Therefore, SDSS J150243.1+111557 is one of the few confirmed kiloparsec-scale binary AGN systems. Spectral energy distribution modeling shows that SDSS J150243.1+111557 is a merger of two similar to 10(11) M-circle dot galaxies. With both black hole masses around 10(8) M-circle dot, the AGNs are accreting at similar to 10 times below the Eddington limit. |
| 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] | SUPERMASSIVE BLACK-HOLES ; LINE REGION KINEMATICS ; DIGITAL SKY SURVEY ; RADIO-SOURCES ; GALAXIES ; QUASAR ; LUMINOSITY ; DISCOVERY ; OBJECTS ; SAMPLE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000296752600013 |
| 公开日期 | 2012-08-07 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/4528]  |
| 专题 | 紫金山天文台_星系中的恒星形成研究团组 |
| 作者单位 | 1.CALTECH, Dept Astron, Pasadena, CA 91125 USA 2.CAS, Purple Mt Observ, Nanjing 210008, Peoples R China 3.Max Planck Inst Radioastron, D-53121 Bonn, Germany 4.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 5.CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA 6.Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA 7.Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA 8.Max Planck Inst Astron, D-69117 Heidelberg, Germany 9.CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA 10.Natl Radio Astron Observ, Socorro, NM 87801 USA |
| 推荐引用方式 GB/T 7714 | Fu, Hai,Zhang, Zhi-Yu,Assef, Roberto J.,et al. A KILOPARSEC-SCALE BINARY ACTIVE GALACTIC NUCLEUS CONFIRMED BY THE EXPANDED VERY LARGE ARRAY[J]. ASTROPHYSICAL JOURNAL LETTERS,2011,740(2):L44(5). |
| APA | Fu, Hai.,Zhang, Zhi-Yu.,Assef, Roberto J..,Stockton, Alan.,Myers, Adam D..,...&Riechers, Dominik A..(2011).A KILOPARSEC-SCALE BINARY ACTIVE GALACTIC NUCLEUS CONFIRMED BY THE EXPANDED VERY LARGE ARRAY.ASTROPHYSICAL JOURNAL LETTERS,740(2),L44(5). |
| MLA | Fu, Hai,et al."A KILOPARSEC-SCALE BINARY ACTIVE GALACTIC NUCLEUS CONFIRMED BY THE EXPANDED VERY LARGE ARRAY".ASTROPHYSICAL JOURNAL LETTERS 740.2(2011):L44(5). |
入库方式： OAI收割
来源：紫金山天文台
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