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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
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2018-06-01
Volume476Issue:4Pages:5579-5590
DOI10.1093/mnras/sty566
Contribution Rank第1完成单位
Indexed BySCI
KeywordPulsars: Individual (Psr b0355+54) Ism: Structure Radio Continuum: General
Abstract

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.

Funding ProjectNational 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
Funding OrganizationNational 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
Language英语
Subject Area天文学 ; 射电天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000432659800089
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordLONG-TERM SCINTILLATION ; PULSAR SCINTILLATION ; PARABOLIC ARCS ; SCATTERING ; SPECTRA ; VELOCITIES
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12395
Collection射电天文研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorLee, K. J.
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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..,...&Bai JM.(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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