Ultra-wide Bandwidth Observations of 19 Pulsars with Parkes Telescope
文献类型：期刊论文
| 作者 | Zhou, Zu-Rong5,6 ; Wang, Jing-Bo3,4,6; Wang, Na3,4,6; Hobbs, George1; Wang, Shuang-Qiang2,5,6
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| 刊名 | Research in Astronomy and Astrophysics
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 22期号:8页码:85001 |
| 关键词 | (stars:) pulsars: general stars: neutron methods: data analysis flux-density measurements polarization discovery spectra polarimetry profiles emission Astronomy & Astrophysics |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ac712b |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Flux densities are basic observation parameters to describe pulsars. In the most updated pulsar catalog, 24% of the listed radio pulsars have no flux density measurement at any frequency. Here, we report the first flux density measurements, spectral indices, pulse profiles, and correlations of the spectral index with pulsar parameters for 19 pulsars employing the Ultra-Wideband Low receiver system installed on the Parkes radio telescope. The results for spectral indices of 17 pulsars are in the range between -0.6 and -3.10. The polarization profiles of thirteen pulsars are shown. There is a moderate correlation between the spectral index and spin frequency. For most pulsars detected, the signal-to-noise ratio of pulse profile is not high, so DM, Faraday rotation measure, and polarization cannot be determined precisely. Twenty-nine pulsars were not detected in our observations. We discuss the possible explanations for why these pulsars were not detected. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000825854600001 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5152]  |
| 专题 | 脉冲星研究团组 |
| 作者单位 | 1.CSIRO Astronomy and Space Science, PO Box 76, Epping, NSW 1710, Australia; 2.CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing 100101, China 3.Key Lab of Radio Astronomy, Chinese Academy of Sciences, Beijing 100101, China; 4.Xinjiang Key Laboratory of Radio Astrophysics, 150 Science1-Street, Urumqi, Xinjiang 830011, China; 5.University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China; 6.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China; wangjingbo@xao.ac.cn, na.wang@xao.ac.cn; |
| 推荐引用方式 GB/T 7714 | Zhou, Zu-Rong,Wang, Jing-Bo,Wang, Na,et al. Ultra-wide Bandwidth Observations of 19 Pulsars with Parkes Telescope[J]. Research in Astronomy and Astrophysics,2022,22(8):85001. |
| APA | Zhou, Zu-Rong,Wang, Jing-Bo,Wang, Na,Hobbs, George,&Wang, Shuang-Qiang.(2022).Ultra-wide Bandwidth Observations of 19 Pulsars with Parkes Telescope.Research in Astronomy and Astrophysics,22(8),85001. |
| MLA | Zhou, Zu-Rong,et al."Ultra-wide Bandwidth Observations of 19 Pulsars with Parkes Telescope".Research in Astronomy and Astrophysics 22.8(2022):85001. |
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