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| 脉冲星PSR J1224-6407的偏振、频谱和到达时间的研究 | |
| Alternative Title | Study on polarization, spectrum and arrival time of PSR J1224-6407 |
王子阳1,2,3; 王晶波2,3 ; 王娜2,3; 王双强2,3
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| 2024-03-01 | |
| Source Publication | 云南大学学报(自然科学版)
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| ISSN | 0258-7971 |
| Volume | 45Issue:3Pages:628-633 |
| Contribution Rank | 2 |
| Abstract | 使用澳大利亚帕克斯射电望远镜对PSR J1224-6407进行了3个波段的研究，观测数据的时间跨度约10 a. 3个波段观测中心频率分别为732、1 369 MHz和3 100 MHz.将测量得到的流量密度与文献中的频谱数据相结合，得出脉冲星的频谱特性.用简单的幂律谱模型对频谱进行了拟合，得到谱指数为-1.45.用PSRCHIVE软件得到3个频率下平均脉冲轮廓和偏振观测结果，脉冲总强度、圆偏振、线偏振和偏振位置角曲线随频率表现出了不同的变化.在1.4 GHz的频率下，分析了脉冲星的计时残差，更新了脉冲星的位置、自转周期和周期导数等基本参数. |
| Other Abstract | We conducted a study of PSR J1224−6407 at three frequency bands using the Parkes radio telescope in Australia, with a time span of about 10 years. The central frequencies of the three bands are 732 MHz, 1 369 MHz, and 3 100 MHz, respectively. By combining the measured flux densities with spectral data from literature, we derived the spectral characteristics of the pulsar. A simple power-law spectrum model was used to fit the spectrum, resulting in a spectral index of −1.45. The average pulse profiles and polarization observations at the three frequencies were obtained using the PSRCHIVE software. The total intensity, circular polarization, linear polarization, and polarization position angle curves exhibited different variations with frequency. At the frequency of 1.4 GHz, we analyzed the timing residuals of the pulsar and updated its basic parameters such as position, rotation period, and period derivative. |
| Keyword | 射电观测 射电源 射电脉冲星 |
| DOI | 10.7540/j.ynu.20220154 |
| Indexed By | 中文核心期刊要目总览 ; CSCD |
| Language | 中文 |
| WOS ID | CSCD:7499946 |
| CSCD ID | CSCD:7499946 |
| Citation statistics |
Cited Times:1[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7602 |
| Collection | 射电天文研究室_脉冲星研究团组 |
| Affiliation | 1.新疆大学物理科学与技术学院，新疆乌鲁木齐 830046; 2.中国科学院新疆天文台，新疆乌鲁木齐 830011; 3.新疆射电天体物理重点实验室，新疆乌鲁木齐 830011 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | 王子阳,王晶波,王娜,等. 脉冲星PSR J1224-6407的偏振、频谱和到达时间的研究[J]. 云南大学学报(自然科学版),2024,45(3):628-633. |
| APA | 王子阳,王晶波,王娜,&王双强.(2024).脉冲星PSR J1224-6407的偏振、频谱和到达时间的研究.云南大学学报(自然科学版),45(3),628-633. |
| MLA | 王子阳,et al."脉冲星PSR J1224-6407的偏振、频谱和到达时间的研究".云南大学学报(自然科学版) 45.3(2024):628-633. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 王子阳-2023-脉冲星PSR J122（1439KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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