Institutional Repository of Radio Astronomy Research Laboratory
| Detection of strong scattering close to the eclipse region of PSR B1957+20 | |
Bai, J. T.1; Dai, S.2; Zhi, Q. J.1,3; Coles, W. A.4; Li, D.5,6,7; Zhu, W. W.5,6; Hobbs, G.8; Qiao, G. J.9; Wang, N.10 ; Yuan, J. P.10; Filipovic, M. D.2; Wang, J. B.10; Pan, Z. C.5,6; Shang, L. H.1; Dang, S. J.1; Wang, S. Q.10; Miao, C. C.5,6
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| 2022-05-01 | |
| Source Publication | Monthly Notices of the Royal Astronomical Society
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| ISSN | 0035-8711 |
| Volume | 513Issue:2Pages:1794-1800 |
| Contribution Rank | 10 |
| Abstract | We present the first measurement of pulse scattering close to the eclipse region of PSR B1957+20, which is in a compact binary system with a low-mass star. We measured pulse scattering time-scales up to 0.2 ms close to the eclipse and showed that it scales with the dispersion measure (DM) excess roughly as tau proportional to Delta DM2. Our observations provide the first evidence of strong scattering due to multipath propagation effects in the eclipsing material. We show that Kolmogorov turbulence in the eclipsing material with an inner scale of similar to 100 m and an outer scale of the size of the eclipse region can naturally explain the observation. Our results show that the eclipsing material in such systems can be highly turbulent and suggest that scattering is one of the main eclipsing mechanisms at around 1.4 GHz. |
| Keyword | scattering binaries: eclipsing pulsars: general pulsars: individual: PSR B1957+20 millisecond pulsar orbital evolution giant pulses solar-wind binary discovery scintillation propagation variability nebula Astronomy & Astrophysics |
| Subtype | Article |
| DOI | 10.1093/mnras/stac918 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000790937200002 |
| EI Accession Number | 20222112145131 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5125 |
| Collection | 射电天文研究室_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 |
| Affiliation | 1.School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, People’s Republic of China; 2.School of Science, Western Sydney University, Locked Bag 1797, Penrith South DC, NSW 2751, Australia; 3.Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University, Guiyang 550001, China; 4.Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA 92093, USA; 5.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China; 6.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China; 7.NAOC-UKZN Computational Astrophysics Centre, University of KwaZulu-Natal, Durban 4000, South Africa; 8.CSIRO Space and Astronomy, PO Box 76, Epping, NSW 1710, Australia; 9.School of Physics, Peking University, Beijing 100871, People’s Republic of China; 10.Xinjiang Astronomical Observatory, 150, Science-1 Street, Urumqi, 830011 Xinjiang, People’s Republic of China |
| Recommended Citation GB/T 7714 | Bai, J. T.,Dai, S.,Zhi, Q. J.,et al. Detection of strong scattering close to the eclipse region of PSR B1957+20[J]. Monthly Notices of the Royal Astronomical Society,2022,513(2):1794-1800. |
| APA | Bai, J. T..,Dai, S..,Zhi, Q. J..,Coles, W. A..,Li, D..,...&Miao, C. C..(2022).Detection of strong scattering close to the eclipse region of PSR B1957+20.Monthly Notices of the Royal Astronomical Society,513(2),1794-1800. |
| MLA | Bai, J. T.,et al."Detection of strong scattering close to the eclipse region of PSR B1957+20".Monthly Notices of the Royal Astronomical Society 513.2(2022):1794-1800. |
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| Bai-2022-Detection o（960KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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