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Wideband Polarized Emissions from PSR J1938+2213

文献类型：期刊论文

作者Ma, Shu4; Wang, De-Hua4; Wang, Shuang-Qiang1,2,3; Kou, Fei-Fei1,3; Sun, Sheng-Nan1,3; Wang, Na1,3
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2025-08-01
卷号25期号:8页码:085021
关键词(stars:) pulsars: general stars: neutron methods: data analysis
ISSN号1674-4527
DOI10.1088/1674-4527/ade65d
产权排序2
英文摘要We present a wideband polarization analysis of the mode-changing pulsar PSR J1938+2213 using the ultra-wideband low-frequency receiver on Murriyang, the Parkes 64 m radio telescope. Polarization profiles for both the burst and weak emission modes are obtained. We find that the pulse widths of the two modes exhibit distinct frequency dependencies: the pulse width increases with frequency in the burst mode, but decreases in the weak mode. The linear and circular polarization fractions also show different trends with frequency between the two modes. Our spectral analysis shows that both modes follow power-law spectra, but with differing spectral indices.
WOS关键词CURVATURE RADIATION ; PULSAR EMISSION ; RADIO-EMISSION ; MODEL ; PROPAGATION ; MULTIFREQUENCY ; PROFILES ; GEOMETRY
资助项目National Natural Science Foundation of China[12288102] ; National Natural Science Foundation of China[12203092] ; National Natural Science Foundation of China[12041304] ; National Natural Science Foundation of China[12403060] ; National Natural Science Foundation of China[12203045] ; National Natural Science Foundation of China[12203093] ; National Natural Science Foundation of China[12163001] ; National Natural Science Foundation of China[12463007] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-3] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-2] ; National SKA Program of China[2020SKA0120100] ; National Key Research and Development Program of China[2022YFC2205202] ; National Key Research and Development Program of China[2021YFC2203502] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01B71] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01B218] ; Tianshan Talent Training Program for Young Elite Scientists[2023TSYCQNTJ0024] ; Key Laboratory of Xinjiang Uyghur Autonomous Region[2021000059] ; National Key Research and Development Program[2022YFA1603104] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China - Australian Government
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001527530700001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; National SKA Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Tianshan Talent Training Program for Young Elite Scientists ; Key Laboratory of Xinjiang Uyghur Autonomous Region ; National Key Research and Development Program ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China - Australian Government
源URL[http://ir.xao.ac.cn/handle/45760611-7/7907]  
专题脉冲星研究团组
通讯作者Wang, De-Hua; Wang, Shuang-Qiang
作者单位1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia
3.Chinese Acad Sci, Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Peoples R China
4.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550025, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Shu,Wang, De-Hua,Wang, Shuang-Qiang,et al. Wideband Polarized Emissions from PSR J1938+2213[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2025,25(8):085021.
APA Ma, Shu,Wang, De-Hua,Wang, Shuang-Qiang,Kou, Fei-Fei,Sun, Sheng-Nan,&Wang, Na.(2025).Wideband Polarized Emissions from PSR J1938+2213.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,25(8),085021.
MLA Ma, Shu,et al."Wideband Polarized Emissions from PSR J1938+2213".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 25.8(2025):085021.

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来源：新疆天文台

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