Interstellar Scintillation and Polarization of PSR B0656+14 in the Monogem Ring
文献类型：期刊论文
| 作者 | Yao, Jumei10 ; Coles, William A.9; Manchester, Richard N.8; Stinebring, Daniel R.7; Kramer, Michael5,6; Wang, Na10; Li, Di2,3,4; Zhu, Weiwei4; Feng, Yi1; Yuan, Jianping10
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2022-11-01 |
| 卷号 | 939期号:2页码:14 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ac9667 |
| 通讯作者 | Yao, Jumei(yaojumei@xao.ac.cn) |
| 英文摘要 | High-sensitivity interstellar scintillation and polarization observations of PSR B0656+14 made at three epochs over a year using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) show that the scattering is dominated by two different compact regions. We identify the one nearer to the pulsar with the shell of the Monogem Ring, thereby confirming the association. The other is probably associated with the Local Bubble. We find that the observed position angles of the pulsar spin axis and the spatial velocity are significantly different, with a separation of 19.degrees 3 +/- 0.degrees 8, inconsistent with a previously published near-perfect alignment of 1 degrees +/- 2 degrees. The two independent scattering regions are clearly defined in the secondary spectra, which show two strong forward parabolic arcs. The arc curvatures imply that the scattering screens corresponding to the outer and inner arcs are located approximately 28 pc from PSR B0656+14 and 185 pc from the Earth, respectively. Comparison of the observed Doppler profiles with electromagnetic simulations shows that both scattering regions are mildly anisotropic. For the outer arc, we estimate the anisotropy A ( R ) to be approximately 1.3, with the scattering irregularities aligned parallel to the pulsar velocity. For the outer arc, we compare the observed delay profiles with delay profiles computed from a theoretical strong-scattering model. Our results suggest that the spatial spectrum of the scattering irregularities in the Monogem Ring is flatter than Kolmogorov, but further observations are required to confirm this. |
| WOS关键词 | TURBULENT-PLASMA SPECTRUM ; MULTIFREQUENCY OBSERVATIONS ; ROTATION MEASURES ; PROPER MOTION ; EMISSION ; PULSARS ; ALIGNMENT ; SCIENCE ; LOFAR ; PROPAGATION |
| 资助项目 | National Natural Science Foundation of China[11988101] ; National Natural Science Foundation of China[11903049] ; National Natural Science Foundation of China[12041304] ; National Natural Science Foundation of China[U2031117] ; West Light Foundation of the Chinese Academy of Sciences[2018-XBQNXZ- B-023] ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; US National Science Foundation[2009759] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP Publishing Ltd |
| WOS记录号 | WOS:000882159400001 |
| 资助机构 | National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; US National Science Foundation |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4957]  |
| 专题 | 脉冲星研究团组 科研仪器设备产出_我台利用FAST观测数据文章 |
| 通讯作者 | Yao, Jumei |
| 作者单位 | 1.Zhejiang Lab, Hangzhou 311121, Zhejiang, Peoples R China 2.Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr, ZA-4000 Durban, South Africa 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Datun Rd A20, Beijing 100101, Peoples R China 5.Univ Manchester, Jodrell Bank Ctr Astrophys, Manchester M13 9PL, Lancs, England 6.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany 7.Oberlin Coll, Dept Phys & Astron, Oberlin, OH 44074 USA 8.CSIRO Space & Astron, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia 9.Univ Calif San Diego, Elect & Comp Engn, San Diego, CA 92093 USA 10.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Jumei,Coles, William A.,Manchester, Richard N.,et al. Interstellar Scintillation and Polarization of PSR B0656+14 in the Monogem Ring[J]. ASTROPHYSICAL JOURNAL,2022,939(2):14. |
| APA | Yao, Jumei.,Coles, William A..,Manchester, Richard N..,Stinebring, Daniel R..,Kramer, Michael.,...&Wang, Pei.(2022).Interstellar Scintillation and Polarization of PSR B0656+14 in the Monogem Ring.ASTROPHYSICAL JOURNAL,939(2),14. |
| MLA | Yao, Jumei,et al."Interstellar Scintillation and Polarization of PSR B0656+14 in the Monogem Ring".ASTROPHYSICAL JOURNAL 939.2(2022):14. |
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