Study of pulsar flux density and its variability with Parkes data archive
文献类型：期刊论文
| 作者 | Wang, Ziyang1,6; Wang, Jingbo4,5 ; Wang, Na4,6; Dai, Shi2,3; Xie, Jintao4,6
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| 刊名 | Monthly Notices of the Royal Astronomical Society
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| 出版日期 | 2023 |
| 卷号 | 520期号:1页码:1311-1323 |
| 关键词 | methods: observational stars: neutron pulsars: general ISM: general interstellar scintillation refractive scintillation radio searches discovery frequency receiver ghz Astronomy & Astrophysics |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/stad199 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | We present average flux density measurements of 151 radio pulsars at 1.4 GHz with the Parkes 'Murriyang' radio telescope. We recommend our results be included in the next version of the Australia Telescope National Facility Pulsar Catalogue. The large sample of pulsars together with their wide dispersion measure (DM) range makes this data set useful for studying variability of flux density, pulsar spectra, and interstellar medium (ISM). We derive the modulation indices and structure-function from the flux density time series for 95 and 54 pulsars, respectively. We suggest the modulation index also be included in the next version of the pulsar catalogue to manifest the variability of pulsar flux density. The modulation index of flow density and DM are negatively correlated. The refractive scintillation (RISS) time-scales or its lower bound for a set of 15 pulsars are derived. They are very different from theoretical expectations, implying the complicated properties of the ISM along different lines of sight. The structure-function for other pulsars is flat. The RISS parameters for some of these pulsars possibly could be derived with different observing strategies in the future. |
| 语种 | 英语 |
| WOS记录号 | WOS:000937053400009 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6651]  |
| 专题 | 脉冲星研究团组 |
| 作者单位 | 1.College of Physics Science and Technology, Xinjiang University, Xinjiang 830046, China; 2.Australia Telescope National Facility, CSIRO Space and Astronomy, PO Box 76, Epping, NSW 1710, Australia 3.School of Science, Western Sydney University, Locked Bag 1797, Penrith South DC, NSW 1797, Australia; 4.Xinjiang Key Laboratory of Radio Astrophysics, 150 Science 1-Street, Urumqi, Xinjiang 830011, China; 5.Institute of Optoelectronic Technology, Lishui University, Lishui, Zhen 323000, China; 6.Xinjiang Astronomical Observatory, 150 Science-1 Street, Urumqi 830011, China; |
| 推荐引用方式 GB/T 7714 | Wang, Ziyang,Wang, Jingbo,Wang, Na,et al. Study of pulsar flux density and its variability with Parkes data archive[J]. Monthly Notices of the Royal Astronomical Society,2023,520(1):1311-1323. |
| APA | Wang, Ziyang,Wang, Jingbo,Wang, Na,Dai, Shi,&Xie, Jintao.(2023).Study of pulsar flux density and its variability with Parkes data archive.Monthly Notices of the Royal Astronomical Society,520(1),1311-1323. |
| MLA | Wang, Ziyang,et al."Study of pulsar flux density and its variability with Parkes data archive".Monthly Notices of the Royal Astronomical Society 520.1(2023):1311-1323. |
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