A Single-pulse Study of PSR J1022+1001 Using the FAST Radio Telescope
文献类型：期刊论文
| 作者 | Feng,Yi1,5,6; Hobbs,G.5; Li,D.1,3,6; Dai,S.5; Zhu,W. W.1; Yue,Y. L.1; Wang,P.1; Zhang,S.-B.2,5,6; Qian,L.1; Zhang,L.1,5,6 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 908期号:1 |
| ISSN号 | 0004-637X |
| 关键词 | Pulsars Astronomy data analysis |
| DOI | 10.3847/1538-4357/abd326 |
| 英文摘要 | Abstract Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we have recorded ～105 single pulses from PSR J1022+1001. We studied the polarization properties, their energy distribution, and their times of arrival. This is only possible with the high sensitivity available using FAST. There is no indication that PSR J1022+1001 exhibits giant pulse, nulling, or traditional mode changing phenomena. The energy in the leading and trailing components of the integrated profile is shown to be correlated. The degree of both linear and circular polarization increases with the pulse flux density for individual pulses. Our data indicates that pulse jitter leads to an excess noise in the timing residuals of 67 ns when scaled to one hour, which is consistent with Liu et al. We have unsuccessfully trialed various methods to improve timing precision through the selection of specific single pulses. Our work demonstrates that FAST can detect individual pulses from pulsars that are observed in order to detect and study gravitational waves. This capability enables detailed studies, and parameterization, of the noise processes that affect the sensitivity of a pulsar timing array. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-908-1-ABD326 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/60507]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Feng,Yi |
| 作者单位 | 1.CAS Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China; yifeng@nao.cas.cn 2.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, People’s Republic of China 3.NAOC-UKZN Computational Astrophysics Centre, University of KwaZulu-Natal, Durban 4000, South Africa 4.Xinjiang Astronomical Observatory, 150, Science-1 Street, Urumqi, 830011 Xinjiang, People’s Republic of China 5.CSIRO Astronomy and Space Science, P.O. Box 76, Epping, NSW 1710, Australia 6.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Feng,Yi,Hobbs,G.,Li,D.,et al. A Single-pulse Study of PSR J1022+1001 Using the FAST Radio Telescope[J]. The Astrophysical Journal,2021,908(1). |
| APA | Feng,Yi.,Hobbs,G..,Li,D..,Dai,S..,Zhu,W. W..,...&Zhang,Y.-K..(2021).A Single-pulse Study of PSR J1022+1001 Using the FAST Radio Telescope.The Astrophysical Journal,908(1). |
| MLA | Feng,Yi,et al."A Single-pulse Study of PSR J1022+1001 Using the FAST Radio Telescope".The Astrophysical Journal 908.1(2021). |
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来源：国家天文台
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