毫秒脉冲星偏振剖面稳定性研究

Q4 Physics and Astronomy

Chinese Astronomy and Astrophysics Pub Date : 2025-07-01 DOI:10.1016/j.chinastron.2025.09.004

Li jie, You Xiao-peng

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引用次数: 0

摘要

与普通脉冲星相比，毫秒脉冲星是一类旋转速度更快的中子星，其发出的脉冲信号具有极高的稳定性。脉冲星极化剖面的稳定性是研究脉冲星辐射机理和星际介质性质的重要问题之一。利用澳大利亚Parkes 64 m望远镜的观测资料，研究了3颗毫秒脉冲星PSR J1022+1001、PSR J1730-2304和PSR j2122 -5721的偏振剖面稳定性。对观测结果的分析表明，在不同的时间，偏振轮廓变化不大。分析了这些变化的原因，并提出了可能的解释，包括星际闪烁的影响和脉冲星固有性质的不稳定性。

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Research on the Polarization Profile Stability of Millisecond Pulsars

Compared with normal pulsars, millisecond pulsars are a class of neutron stars with faster rotation speed, and the pulse signals emitted by them have extremely high stability. The stability of the polarization profile of pulsars is one of the important issues in the study of pulsar radiation mechanism and interstellar medium properties. The polarization profile stability of three millisecond pulsars PSR J1022

+

1001, PSR J1730-2304, and PSR J2129-5721 was studied using the observation data of the Parkes 64 m telescope in Australia. Analysis of the observations shows that the polarization profile changes slightly at different times. The reasons for the changes are analyzed and the possible explanations are proposed, including the effect of the interstellar scintillation and the instability of the intrinsic properties of the pulsars.

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来源期刊

Chinese Astronomy and Astrophysics Physics and Astronomy-Astronomy and Astrophysics

CiteScore

0.70

自引率

0.00%

发文量

期刊介绍： The vigorous growth of astronomical and astrophysical science in China led to an increase in papers on astrophysics which Acta Astronomica Sinica could no longer absorb. Translations of papers from two new journals the Chinese Journal of Space Science and Acta Astrophysica Sinica are added to the translation of Acta Astronomica Sinica to form the new journal Chinese Astronomy and Astrophysics. Chinese Astronomy and Astrophysics brings English translations of notable articles to astronomers and astrophysicists outside China.