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FAST interstellar scintillation observation of PSR B1929+10 and PSR B1842+14

文献类型：期刊论文

作者Yao, Ju-Mei2,3; Zhu, Wei-Wei3; Wang, Pei3; Di Li3; Lu, Ji-Guang3; Kou, Fei-Fei3; Yu, Ye-Zhao1,3; Peng, Bo3
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2020-05-01
卷号20期号:5页码:6
关键词FAST pulsars general ISM structure
ISSN号1674-4527
DOI10.1088/1674-4527/20/5/76
通讯作者Zhu, Wei-Wei(zhuww@nao.cas.cn)
英文摘要In this paper, we present the Five-hundred-meter Aperture Spherical radio Telescope (FAST) observations of PSRs B1929+10 and B1842+14. Through analysis of the pulsars' scintillation pattern, we detected the known scintillation arc from PSR B1929+10 and two previously undetected scintillation arcs from B1842+14. We find that the B1929+10 arc's curvature scales with observing frequency as eta(-) proportional to nu(-2.1 +/- 0.1) and eta(+) proportional to nu(-1.8 +/- 0.2), consistent with Arecibo results and the theoretical expectations of eta proportional to nu(-2). From the arc curvature, we infer the scattering screen to be located at 0.20 +/- 0.02 kpc from the Earth, close to what was measured by RadioAstron at 324 MHz. From B1842+14, we find two scintillation arcs for the first time. The arcs' curvatures imply that they are caused by two scattering screens located at a distance of 0.3 +/- 0.2 kpc and 1.6 +/- 0.6 kpc from the Earth, respectively. The screen distance uncertainties mainly come from the uncertainty in pulsar's dispersion measure (DM)-derived distance. We present these FAST scintillation observations and discuss the future prospect of FAST pulsar scintillation study.
WOS关键词SCATTERING ; PULSARS ; ARCS
资助项目CAS Light of West China Program[2017-XBQNXZ-B-022] ; CAS International Partnership Program[114A11KYSB20160008] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23000000] ; National Natural Science Foundation of China[61472043] ; National Natural Science Foundation of China[11743002] ; National Natural Science Foundation of China[11873067] ; National Natural Science Foundation of China[11690024] ; National Natural Science Foundation of China[11725313] ; National Natural Science Foundation of China[U1831104] ; Chinese Academy of Science Pioneer Hundred Talents Program ; Center for Astronomical MegaScience, Chinese Academy of Sciences (CAMS) ; Tianchi Doctoral Program 2017
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000536710100001
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
资助机构CAS Light of West China Program ; CAS International Partnership Program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Chinese Academy of Science Pioneer Hundred Talents Program ; Center for Astronomical MegaScience, Chinese Academy of Sciences (CAMS) ; Tianchi Doctoral Program 2017
源URL[http://ir.xao.ac.cn/handle/45760611-7/3497]  
专题脉冲星研究团组
通讯作者Zhu, Wei-Wei
作者单位1.Qiannan Normal Univ Nationalities, Sch Phys & Elect, Duyun 558000, Peoples R China
2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Yao, Ju-Mei,Zhu, Wei-Wei,Wang, Pei,et al. FAST interstellar scintillation observation of PSR B1929+10 and PSR B1842+14[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(5):6.
APA Yao, Ju-Mei.,Zhu, Wei-Wei.,Wang, Pei.,Di Li.,Lu, Ji-Guang.,...&Peng, Bo.(2020).FAST interstellar scintillation observation of PSR B1929+10 and PSR B1842+14.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(5),6.
MLA Yao, Ju-Mei,et al."FAST interstellar scintillation observation of PSR B1929+10 and PSR B1842+14".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.5(2020):6.

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