Constraining the radio jet proper motion of the high-redshift quasar J2134-0419 at z=4.3
文献类型：期刊论文
| 作者 | Perger, Krisztina1,2; Frey, Sandor2; Gabanyi, Krisztina E.2,3; An, Tao4,5; Britzen, Silke6; Cao, Hong-Min7,8; Cseh, David2; Dennett-Thorpe, Jane9; Gurvits, Leonid, I10,11; Hong, Xiao-Yu4,5 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 477期号:1页码:1065-1070 |
| 关键词 | galaxies: active galaxies: high-redshift galaxies: nuclei quasars: individual: PMN J2134-0419 radio continuum: galaxies |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/sty837 |
| 通讯作者 | Perger, Krisztina(k.perger@astro.elte.hu) |
| 英文摘要 | To date, PMN J2134-0419 (at a redshift z = 4.33) is the second most distant quasar known with a milliarcsecond-scale morphology permitting direct estimates of the jet proper motion. Based on two-epoch observations, we constrained its radio jet proper motion using the very long baseline interferometry (VLBI) technique. The observations were conducted with the European VLBI Network (EVN) at 5 GHz on 1999 November 26 and 2015 October 6. We imaged the central 10-pc scale radio jet emission and modelled its brightness distribution. By identifying a jet component at both epochs separated by 15.86 yr, a proper motion of mu = 0.035 +/- 0.023 mas yr(-1) is found. It corresponds to an apparent superluminal speed of beta(a)= 4.1 +/- 2.7 c. Relativistic beaming at both epochs suggests that the jet viewing angle with respect to the line of sight is smaller than 20 degrees, with a minimum bulk Lorentz factor Gamma = 4.3. The small value of the proper motion is in good agreement with the expectations from the cosmological interpretation of the redshift and the current cosmological model. Additionally we analysed archival Very Large Array observations of J2143-0419 and found indication of a bent jet extending to similar to 30 kpc. |
| WOS关键词 | ACTIVE GALACTIC NUCLEI ; SOURCE CATALOG ; VLBI SURVEY ; SKY SURVEY ; KINEMATICS ; COSMOLOGY ; GALAXIES ; SAMPLE |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000432660300076 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/21991]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Perger, Krisztina |
| 作者单位 | 1.Eotvos Lorand Univ, Dept Astron, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary 2.MTA Res Ctr Astron & Earth Sci, Konkoly Observ, Konkoly Thege Miklos Ut 15-17, H-1121 Budapest, Hungary 3.MTA ELTE Extragalact Astrophys Res Grp, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary 4.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 5.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 6.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany 7.Shangqiu Normal Univ, Sch Elect & Elect Engn, Wenhua Rd 298, Shangqiu 476000, Henan, Peoples R China 8.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 9.Univ Manchester, Manchester M13 9PL, Lancs, England 10.Joint Inst VLBI ERIC, POB 2, NL-7990 AA Dwingeloo, Netherlands |
| 推荐引用方式 GB/T 7714 | Perger, Krisztina,Frey, Sandor,Gabanyi, Krisztina E.,et al. Constraining the radio jet proper motion of the high-redshift quasar J2134-0419 at z=4.3[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,477(1):1065-1070. |
| APA | Perger, Krisztina.,Frey, Sandor.,Gabanyi, Krisztina E..,An, Tao.,Britzen, Silke.,...&Zhang, Yingkang.(2018).Constraining the radio jet proper motion of the high-redshift quasar J2134-0419 at z=4.3.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,477(1),1065-1070. |
| MLA | Perger, Krisztina,et al."Constraining the radio jet proper motion of the high-redshift quasar J2134-0419 at z=4.3".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 477.1(2018):1065-1070. |
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