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Interstellar scintillation observations for PSR B0355+54
Xu YH(徐永华)1,2,3; Lee, K. J.4,5; Hao LF(郝龙飞)1,3; Wang, H. G.6; Liu, Z. Y.7; Yue, Y. L.5; Yuan, J. P.7; Li ZX(李志玄)1,2,3; Wang M(汪敏)1,3; Dong J(董江)1,3; Tan JJ(谭嘉俊)1,3; Chen W(陈文)1,3; Bai JM(白金明)1,3; Lee, K. J., Email: kjlee@pku.edu.cn
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2018-06-01
卷号476期号:4页码:5579-5590
DOI10.1093/mnras/sty566
产权排序第1完成单位
收录类别SCI
关键词Pulsars: Individual (Psr b0355+54) Ism: Structure Radio Continuum: General
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.
项目资助者National Natural Science Foundation of China(U15311243) ; National Basic Research Program of China ; 973 Program(2015CB857101, XDB23010200, 11690024, 11373011, 11303093, U1431113, 11178001, 11573008) ; Max-Planck Partner Group
语种英语
学科领域天文学
文章类型Article
ISSN0035-8711
URL查看原文
WOS记录号WOS:000432659800089
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]LONG-TERM SCINTILLATION ; PULSAR SCINTILLATION ; PARABOLIC ARCS ; SCATTERING ; SPECTRA ; VELOCITIES
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12395
专题射电天文研究组
中国科学院天体结构与演化重点实验室
通讯作者Lee, K. J., Email: kjlee@pku.edu.cn
作者单位1.Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Key Laboratory for Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
4.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China
5.National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
6.Centre for Astrophysics, Guangzhou University, Guangzhou 510006, China
7.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150 Science 1-Street, Urumqi, Xinjiang 830011, China
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Xu YH,Lee, K. J.,Hao LF,et al. Interstellar scintillation observations for PSR B0355+54[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,476(4):5579-5590.
APA Xu YH.,Lee, K. J..,Hao LF.,Wang, H. G..,Liu, Z. Y..,...&Lee, K. J., Email: kjlee@pku.edu.cn.(2018).Interstellar scintillation observations for PSR B0355+54.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,476(4),5579-5590.
MLA Xu YH,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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