Parsec-scale jet properties of the quasar PG 1302-102
文献类型：期刊论文
| 作者 | Mohan, P.1; An, T.1,2; Frey, S.3; Mangalam, A.4; Gabanyi, K. E.3,5; Kun, E.6,7 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 463期号:2页码:1812-1821 |
| 关键词 | Black Hole Physics Galaxies: Active Galaxies: Jets Quasars: Individual: Pg 1302-102 |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/stw2154 |
| 英文摘要 | The quasar PG 1302-102 is believed to harbour a supermassive binary black hole (SMBBH) system. Using the available 15 GHz and 2-8 GHz, multi-epoch Very Long Baseline Array data, we constrain the pc-scale jet properties based on the inferred mean proper motion, including a bulk Lorentz factor >= 5.1 +/- 0.8, jet inclination angle <= 11.degrees 4 +/- 1.degrees 7, projected position angle = 31.degrees 8, intrinsic half opening angle <= 0.degrees 9 +/- 0.degrees 1 and a mean 2-8 GHz spectral index of 0.31. A general relativistic helical jet model is presented and applied to predict quasi-periodic oscillations of similar to 10 d, power-law power spectrum shape and a contribution of up to similar to 53 per cent to the observed variable core flux density. The model is used to make a case for high resolution, moderately sampled, long duration radio interferometric observations to reveal signatures due to helical knots and distinguish them from those due to SMBBH orbital activity including a phase difference similar to pi and an amplitude ratio (helical light-curve amplitude/SMBBH light-curve amplitude) of 0.2-3.3. The prescription can be used to identify helical kinematic signatures from quasars, providing possible candidates for further studies with polarization measurements. It can also be used to infer promising SMBBH candidates for the study of gravitational waves if there are systematic deviations from helical signatures. |
| WOS关键词 | ACTIVE GALACTIC NUCLEI ; BLACK-HOLE BINARY ; PERIODIC RADIO VARIABILITIES ; PULSAR TIMING ARRAYS ; RELATIVISTIC JETS ; SUPERLUMINAL MOTION ; KINEMATICS ANALYSIS ; BLAZAR 1156+295 ; FIELD STRUCTURE ; EMISSION-LINES |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000388122400053 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/24102]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Mohan, P.; An, T.; Frey, S. |
| 作者单位 | 1.Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 3.Satellite Geodet Observ, FOMI, POB 585, H-1592 Budapest, Hungary 4.Indian Inst Astrophys, Sarjapur Rd, Bangalore 560034, Karnataka, India 5.MTA Res Ctr Astron & Earth Sci, Konkoly Observ, POB 67, H-1525 Budapest, Hungary 6.Univ Szeged, Dept Expt Phys, Dom Ter 9, H-6720 Szeged, Hungary 7.Univ Szeged, Dept Theoret Phys, Tisza Lajos Krt 84-86, H-6720 Szeged, Hungary |
| 推荐引用方式 GB/T 7714 | Mohan, P.,An, T.,Frey, S.,et al. Parsec-scale jet properties of the quasar PG 1302-102[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,463(2):1812-1821. |
| APA | Mohan, P.,An, T.,Frey, S.,Mangalam, A.,Gabanyi, K. E.,&Kun, E..(2016).Parsec-scale jet properties of the quasar PG 1302-102.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,463(2),1812-1821. |
| MLA | Mohan, P.,et al."Parsec-scale jet properties of the quasar PG 1302-102".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 463.2(2016):1812-1821. |
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来源：紫金山天文台
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