Interstellar scintillation observations for PSR B0355+54 | |
Xu, Y. H.1,2,3; Lee, K. J.4,5; Hao, L. F.1,3; Wang, H. G.6; Liu, Z. Y.7; Yue, Y. L.5; Yuan, J. P.7; Li, Z. X.1,2,3; Wang, M.1,3; Dong, J.1,3 | |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
2018-06-01 | |
卷号 | 476期号:4页码:5579-5590 |
关键词 | pulsars: individual (PSR B0355+54) ISM: structure radio continuum: general |
ISSN号 | 0035-8711 |
DOI | 10.1093/mnras/sty566 |
英文摘要 | In this paper, we report our investigation of pulsar scintillation phenomena by monitoring PSR B0355+54 at 2.25 GHz for three successive months using the Kunming 40-m radio telescope. We measured the dynamic spectrum, the two-dimensional correlation function and the secondary spectrum. These observations have a high signal-to-noise ratio (S/N >= 100). We detected scintillation arcs, which are rarely observable using such a small telescope. The submicrosecond scale width of the scintillation arc indicates that the transverse scale of the structures on the scattering screen is as compact as astronomical unit size. Our monitoring shows that the scintillation bandwidth, the time-scale and the arc curvature of PSR B0355+54 were varying temporally. A plausible explanation would need to invoke a multiple-scattering-screen or multiple-scattering-structure scenario, in which different screens or ray paths dominate the scintillation process at different epochs. |
资助项目 | National Natural Science Foundation of China[U15311243] ; National Basic Research Program of China ; 973 Program[2015CB857101] ; 973 Program[XDB23010200] ; 973 Program[11690024] ; 973 Program[11373011] ; 973 Program[11303093] ; 973 Program[U1431113] ; 973 Program[11178001] ; 973 Program[11573008] ; Max-Planck Partner Group |
WOS关键词 | LONG-TERM SCINTILLATION ; PULSAR SCINTILLATION ; PARABOLIC ARCS ; SCATTERING ; SPECTRA ; VELOCITIES |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000432659800089 |
资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China ; 973 Program ; 973 Program ; Max-Planck Partner Group ; Max-Planck Partner Group ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China ; 973 Program ; 973 Program ; Max-Planck Partner Group ; Max-Planck Partner Group ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China ; 973 Program ; 973 Program ; Max-Planck Partner Group ; Max-Planck Partner Group ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China ; National Basic Research Program of China ; 973 Program ; 973 Program ; Max-Planck Partner Group ; Max-Planck Partner Group |
内容类型 | 期刊论文 |
源URL | [http://ir.bao.ac.cn/handle/114a11/21729] |
专题 | 中国科学院国家天文台 |
通讯作者 | Lee, K. J. |
作者单位 | 1.Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Yunnan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Yunnan, Peoples R China 4.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 5.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China 6.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China 7.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 | Xu, Y. H.,Lee, K. J.,Hao, L. F.,et al. Interstellar scintillation observations for PSR B0355+54[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,476(4):5579-5590. |
APA | Xu, Y. H..,Lee, K. J..,Hao, L. F..,Wang, H. G..,Liu, Z. Y..,...&Bai, J. M..(2018).Interstellar scintillation observations for PSR B0355+54.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,476(4),5579-5590. |
MLA | Xu, Y. H.,et al."Interstellar scintillation observations for PSR B0355+54".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 476.4(2018):5579-5590. |
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