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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, Yuanshang7; Shi, Xun7; Yao, Jumei4,5,6; Zhu, Weiwei1,3; Xu YH(徐永华)2,8
刊名ASTROPHYSICAL JOURNAL
出版日期2026-01-20
卷号997期号:1
ISSN号0004-637X
DOI10.3847/1538-4357/ae25e4
产权排序第7完成单位
文献子类Article
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.
学科主题天文学 ; 星系与宇宙学
URL标识查看原文
出版地No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND
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)[12373025]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28852]  
专题云南天文台_射电天文研究组
通讯作者Huang, Yuanshang; Shi, Xun
作者单位1.Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University, Beijing 102206, People’s Republic of China;
2.Key Laboratory of Radio Astronomy and Technology, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China
3.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China;
4.Xinjiang Key Laboratory of Radio Astrophysics, 150 Science1-Street, Urumqi, Xinjiang 830011, People’s Republic of China;
5.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, People’s Republic of China;
6.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150 Science 1-Street, Urumqi, Xinjiang 830011, People’s Republic of China;
7.South-Western Institute for Astronomy Research (SWIFAR), Yunnan University, Kunming 650500, People’s Republic of China; huangyuanshang42@gmail.com, xun@ynu.edu.cn;
8.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People’s Republic of 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).
APA Huang, Yuanshang,Shi, Xun,Yao, Jumei,Zhu, Weiwei,&徐永华.(2026).Precision Determination of Scintillation Screen Parameters from Annual Modulation Measurement of Pulsar Scintillation Arc Curvature with the FAST Telescope.ASTROPHYSICAL JOURNAL,997(1).
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).

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来源：云南天文台

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