A long-lived compact jet in the black hole X-ray binary candidate AT2019wey
文献类型：期刊论文
| 作者 | Cao, Hong-Min10 ; Migliori, Giulia9; Giroletti, Marcello9; Frey, Sandor7,8; Yang, Jun6; Gabanyi, Krisztina E.4,5,8; Cui, Lang3; An, Tao2; Hong, Xiao-Yu2; Zhang, Wen-Da1
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| 刊名 | ASTRONOMY & ASTROPHYSICS
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| 出版日期 | 2022-01-19 |
| 卷号 | 657页码:8 |
| 关键词 | stars individual AT2019wey ISM jets and outflows X-rays binaries |
| ISSN号 | 0004-6361 |
| DOI | 10.1051/0004-6361/202142241 |
| 通讯作者 | Cao, Hong-Min(hongmin.cao@foxmail.com) |
| 英文摘要 | AT2019wey is a transient discovered by the Asteroid Terrestrial-impact Last Alert System survey in December of 2019. Follow-up optical, radio, and X-ray observations led to classification of this source as a Galactic black hole X-ray binary candidate. We carried out one-epoch 6.7 GHz European Very Long Baseline Interferometry Network and two-epoch multi-frequency (1.6, 4.5, 6.7 GHz) Very Long Baseline Array observations within a year after its discovery. These observations reveal a fading and flat-spectrum radio source with no discernible motion. These features suggest the detection of a compact jet. The source appears resolved at milliarcsecond scales, and the source angular size versus frequency trend is consistent with scatter broadening. This allows us to constrain the lower limit of the source distance to 6 kpc if the scattering medium is in a Galactic spiral arm. For a source location at greater than 3 kpc, the estimated upper limit of the peculiar velocity suggests the asymmetric natal kick may have occurred during the black hole formation stage. |
| WOS关键词 | ACTIVE GALACTIC NUCLEI ; RELATIVISTIC JETS ; VLBI OBSERVATIONS ; RADIO ; EJECTION ; GALAXY ; STATE |
| 资助项目 | EVN project[RSC07] ; National Natural Science Foundation of China[U2031116] ; National Natural Science Foundation of China[U1731103] ; National Research, Development and Innovation Office[OTKAK134213] ; National Research, Development and Innovation Office[2018-2.1.14-TET-CN-2018-00001] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000744244200001 |
| 出版者 | EDP SCIENCES S A |
| 资助机构 | EVN project ; National Natural Science Foundation of China ; National Research, Development and Innovation Office |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4467]  |
| 专题 | 星系宇宙学研究团组 |
| 通讯作者 | Cao, Hong-Min |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Radio Astron, 80 Nandan Rd, Shanghai 200030, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 4.Eotvos Lorand Univ, ELKH ELTE Extragalact Astrophys Res Grp, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary 5.Eotvos Lorand Univ, Inst Geog & Earth Sci, Dept Astron, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary 6.Chalmers Univ Technol, Dept Space Earth & Environm, Onsala Space Observ, S-43992 Onsala, Sweden 7.Eotvos Lorand Univ, Inst Phys, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary 8.ELKH Res Ctr Astron & Earth Sci, Konkoly Observ, Konkoly Thege Mikles Ut 15-17, H-1121 Budapest, Hungary 9.INAF Ist Radioastron, Via Gobetti 101, I-40129 Bologna, Italy 10.Shangqiu Normal Univ, Sch Elect & Elect Engn, 298 Wenhua Rd, Shangqiu 476000, Henan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Hong-Min,Migliori, Giulia,Giroletti, Marcello,et al. A long-lived compact jet in the black hole X-ray binary candidate AT2019wey[J]. ASTRONOMY & ASTROPHYSICS,2022,657:8. |
| APA | Cao, Hong-Min.,Migliori, Giulia.,Giroletti, Marcello.,Frey, Sandor.,Yang, Jun.,...&Zhang, Wen-Da.(2022).A long-lived compact jet in the black hole X-ray binary candidate AT2019wey.ASTRONOMY & ASTROPHYSICS,657,8. |
| MLA | Cao, Hong-Min,et al."A long-lived compact jet in the black hole X-ray binary candidate AT2019wey".ASTRONOMY & ASTROPHYSICS 657(2022):8. |
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