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Precision Determination of Scintillation Screen Parameters from Annual Modulation Measurement of Pulsar Scintillation Arc Curvature with the FAST Telescope

文献类型：期刊论文

作者Huang, Yuanshang2; Shi, Xun2; Yao, Jumei1,7,8; Zhu, Weiwei5,6; Xu, Yonghua3,4
刊名ASTROPHYSICAL JOURNAL
出版日期2026-01-20
卷号997期号:1页码:131
ISSN号0004-637X
DOI10.3847/1538-4357/ae25e4
产权排序2
英文摘要Pulsar scintillation observations have revealed ubiquitous discrete scintillation screens in the interstellar medium. A major obstacle in identifying the nature of these screens is the uncertainty in their distances, which prevents precise correlation with known structures in the Milky Way. We used the Five-hundred-meter Aperture Spherical radio Telescope to observe PSR B1237+25, PSR 1842+14, and PSR 2021+51. We detected 10 scintillation arcs in PSR B1237+25, 1 in PSR 1842+14, and at least 6 in PSR 2021+51. By modeling the annual modulation of these scintillation arcs, we constrained the distances of the scintillation screens, as well as the anisotropic scattering directions and the projected velocities in those directions. The scintillation screens are distributed throughout the entire paths between Earth and the pulsars. Among these, the distance to the main scintillation screen toward PSR B1237+25 is 267-28+32 pc, the scintillation screen toward PSR B1842+14 is at a distance of 240-120+210 pc, and the main scintillation screen toward PSR B2021+51 is located at 887-132+167 pc. Several screens in our sample appear at distances coinciding with the Local Bubble boundary, particularly the brightest scintillation arc toward PSR B1237+25. We provide a substantial sample of scintillation screen measurements, revealing the rich plasma density fluctuation structures present in the Milky Way.
WOS关键词INTERSTELLAR-MEDIUM ; EMISSION REGIONS ; PARABOLIC ARCS ; PLASMA LENSES ; NEUTRON-STARS ; BOW SHOCKS ; SCATTERING ; ASTROPY ; SCINTILLOMETRY ; PACKAGE
资助项目MOST divided by National Natural Science Foundation of China (NSFC)[12373025]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001664601400001
出版者IOP Publishing Ltd
资助机构MOST divided by National Natural Science Foundation of China (NSFC)
源URL[http://ir.xao.ac.cn/handle/45760611-7/8499]  
专题脉冲星研究团组
通讯作者Huang, Yuanshang; Shi, Xun
作者单位1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1-St, Urumqi 830011, Xinjiang, Peoples R China
2.Yunnan Univ, South Western Inst Astron Res SWIFAR, Kunming 650500, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron & Technol, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China
5.Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing 102206, Peoples R China
6.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
7.Xinjiang Key Lab Radio Astrophys, 150 Sci 1-St, Urumqi 830011, Xinjiang, Peoples R China
8.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Xinjiang, Peoples R China
推荐引用方式
GB/T 7714		 Huang, Yuanshang,Shi, Xun,Yao, Jumei,et al. Precision Determination of Scintillation Screen Parameters from Annual Modulation Measurement of Pulsar Scintillation Arc Curvature with the FAST Telescope[J]. ASTROPHYSICAL JOURNAL,2026,997(1):131.
APA Huang, Yuanshang,Shi, Xun,Yao, Jumei,Zhu, Weiwei,&Xu, Yonghua.(2026).Precision Determination of Scintillation Screen Parameters from Annual Modulation Measurement of Pulsar Scintillation Arc Curvature with the FAST Telescope.ASTROPHYSICAL JOURNAL,997(1),131.
MLA Huang, Yuanshang,et al."Precision Determination of Scintillation Screen Parameters from Annual Modulation Measurement of Pulsar Scintillation Arc Curvature with the FAST Telescope".ASTROPHYSICAL JOURNAL 997.1(2026):131.

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来源：新疆天文台

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