射电脉冲星J0742-2822 3.1 GHz模式变化研究

IF 1 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astronomische Nachrichten Pub Date : 2025-03-08 DOI:10.1002/asna.20250032

Jun Tan, Jia-Wei Wang, Cheng-Bing Lyu, Jin-Peng Wang, Hui Wang

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引用次数: 0

摘要

利用澳大利亚帕克斯64米射电望远镜的单脉冲数据，研究了PSR J0742-2822在3.1 GHz的模式切换。通过分析各子积分剖面中两个分量的相对强度之比，将该源的积分剖面划分为正常模式和异常模式。然后，我们得到了每种模式下PSR J0742-2822在3.1 GHz下的平均剖面。结果表明，在3.7 h的观测时间内，综合脉冲剖面的正常模式和异常模式分别占72%和28%。这项研究对于理解脉冲星模式转换现象背后的理论机制具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

The Study for Mode Changing for Radio Pulsar J0742-2822 at 3.1 GHz

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The Study for Mode Changing for Radio Pulsar J0742-2822 at 3.1 GHz

The mode switching of PSR J0742-2822 at 3.1 GHz was investigated using single-pulse data from the Parkes 64-m radio telescope in Australia. By analyzing the ratio of the relative intensity of the two components for each sub-integral profile, we classified the integral profile of this source into two modes: normal mode and abnormal mode. We then obtained the average profile of PSR J0742-2822 at 3.1 GHz for each mode. The results indicate that the normal and abnormal modes of integrated pulse profiles occurred 72% and 28% of the time, respectively, over a total of 3.7 h of observation. This study is significant for understanding the theoretical mechanism behind the pulsar mode-switching phenomenon.

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来源期刊

Astronomische Nachrichten 地学天文-天文与天体物理

CiteScore

1.80

自引率

11.10%

发文量

审稿时长

4-8 weeks

期刊介绍： Astronomische Nachrichten, founded in 1821 by H. C. Schumacher, is the oldest astronomical journal worldwide still being published. Famous astronomical discoveries and important papers on astronomy and astrophysics published in more than 300 volumes of the journal give an outstanding representation of the progress of astronomical research over the last 180 years. Today, Astronomical Notes/ Astronomische Nachrichten publishes articles in the field of observational and theoretical astrophysics and related topics in solar-system and solar physics. Additional, papers on astronomical instrumentation ground-based and space-based as well as papers about numerical astrophysical techniques and supercomputer modelling are covered. Papers can be completed by short video sequences in the electronic version. Astronomical Notes/ Astronomische Nachrichten also publishes special issues of meeting proceedings.