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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; Tan, J. J.1,3; Chen, W.1,3; Bai, J. M.1,3
Contribution Rank7

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.

KeywordPulsars: Individual (Psr b0355+54) Ism: Structure Radio Continuum: General
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS KeywordLong-term Scintillation ; Pulsar Scintillation ; Parabolic Arcs ; Scattering ; Spectra ; Velocities
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000432659800089
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
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLee, K. J.
Affiliation1.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
Recommended Citation
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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