Multifrequency Study on the Mode Switching of PSR J0614+2229
文献类型：期刊论文
| 作者 | Zhang, Y. R.4,5; Wang, H. G.3,5; Huang, X. J.2; Chen, J. L.1 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2020-02-10 |
| 卷号 | 890期号:1页码:31 |
| ISSN号 | 0004-637X |
| 关键词 | pulsars: general pulsars: individual : PSR J0614+2229 stars: neutron |
| DOI | 10.3847/1538-4357/ab65f3 |
| 产权排序 | 3 |
| 英文摘要 | The mode switching phenomenon of PSR J0614+2229 was studied using the archived observations at 686, 1369, and 3100 MHz with the Parkes radio telescope that have not been published before, and combining existing observations from the literature. Over a wide frequency range from 327 to 3100 MHz, the pulsar switches between one mode occurring earlier in pulse phase (mode A) and the other mode appearing later in phase (mode B), with a generally frequency-independent phase offset between their profile peaks. The two modes are found to be different in the following aspects. (1) Mode A has a flatter spectrum than mode B, with a difference in the spectral index of about 0.5. This accounts for the phenomenon that the flux ratio between the modes A and B increases with frequency, and mode A becomes stronger than mode B above similar to 500 MHz. (2) For mode B, the flux density of the subintegrated profile is anticorrelated with the emission phase, indicating that the emission from earlier phases is relatively stronger than that from later phases; such an anticorrelation is not observed in mode A. (3) The frequency dependence of the FWHM of the two modes are opposite each other; namely, the FWHM of mode A increases with frequency, while that of mode B decreases with frequency. A possible interpretation is suggested: the longitudinal spectral variation across the two beams may be opposites of each other. |
| WOS关键词 | PULSAR ; RADIO ; EMISSION |
| 资助项目 | National Natural Science Foundation of China[11178001] ; National Natural Science Foundation of China[11573008] ; National Natural Science Foundation of China[U1631106] ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; Australian Government |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000522095800031 |
| 资助机构 | National Natural Science Foundation of China ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; Australian Government |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3415]  |
| 专题 | 脉冲星研究团组 |
| 通讯作者 | Wang, H. G. |
| 作者单位 | 1.Yuncheng Univ, Dept Phys & Elect Engn, Yuncheng 044000, Shanxi, Peoples R China 2.Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Hubei, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 4.Univ Padua, Dept Phys & Astron, Via F Marzolo 8, I-35131 Padua, Italy 5.Guangzhou Univ, Sch Phys & Elect Engn, Guangzhou 510006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Y. R.,Wang, H. G.,Huang, X. J.,et al. Multifrequency Study on the Mode Switching of PSR J0614+2229[J]. ASTROPHYSICAL JOURNAL,2020,890(1):31. |
| APA | Zhang, Y. R.,Wang, H. G.,Huang, X. J.,&Chen, J. L..(2020).Multifrequency Study on the Mode Switching of PSR J0614+2229.ASTROPHYSICAL JOURNAL,890(1),31. |
| MLA | Zhang, Y. R.,et al."Multifrequency Study on the Mode Switching of PSR J0614+2229".ASTROPHYSICAL JOURNAL 890.1(2020):31. |
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来源：新疆天文台
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