Dwarf Pulses of 10 Pulsars Detected by FAST
文献类型：期刊论文
| 作者 | Yan, Yi2,3; Han, J. L.1,2,3; Zhou, D. J.2,3; Xie, L.2,3; Kou, F. F.4 ; Wang, P. F.2,3; Wang, C.2,3; Wang, T.2,3
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2024-04-01 |
| 卷号 | 965期号:1页码:25 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad2e9c |
| 产权排序 | 4 |
| 英文摘要 | How pulsars radiate is a long-standing problem. Detailed polarization measurements of individual pulses shed light on currently unknown emission processes. Recently, based on supersensitive observations, dwarf pulses have been recognized as weak narrow pulses often appearing during the nulling state. In this study, we report the detection of dwarf pulses from 10 pulsars, PSRs B0525+21, B1237+25, J1538+2345, J1824-0127, J1851-0053, B1901+10, J1939+10, B1944+17, B2000+40, and J2112+4058, based on observations conducted with the Five-hundred-meter Aperture Spherical radio Telescope. Dwarf pulses of five pulsars are clearly discernible in the two-dimensional distribution of pulse intensity and pulse width. For the other five pulsars, PSRs J1538+2345, J1824-0127, J1939+10, B2000+40, and J2112+4058, only a few dwarf pulses are detected from pulse stacks. The dwarf pulses can emerge in both cone and core emission components for PSR B1237+25, and the polarization angles of these dwarf pulses are mostly in the orthogonal polarization mode of normal pulses for PSR B1944+17. In general, pulsars with detected dwarf pulses tend to be located within the "death valley" region of the distribution of pulsar periods and period derivatives. |
| WOS关键词 | SUBPULSE MODULATION ; EMISSION ; DISCOVERY ; NULLS ; MODES ; CORE |
| 资助项目 | Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences[11988101] ; Chinese Academy of Sciences[11833009] ; Chinese Academy of Sciences[12203093] ; Natural Science Foundation of China[2020SKA0120100] ; National SKA Program of China |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001195476700001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; Natural Science Foundation of China ; National SKA Program of China |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6235]  |
| 专题 | 脉冲星研究团组 科研仪器设备产出_我台利用FAST观测数据文章 |
| 通讯作者 | Han, J. L. |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab FAST, NAOC, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Jia 20 Datun Rd, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Yi,Han, J. L.,Zhou, D. J.,et al. Dwarf Pulses of 10 Pulsars Detected by FAST[J]. ASTROPHYSICAL JOURNAL,2024,965(1):25. |
| APA | Yan, Yi.,Han, J. L..,Zhou, D. J..,Xie, L..,Kou, F. F..,...&Wang, T..(2024).Dwarf Pulses of 10 Pulsars Detected by FAST.ASTROPHYSICAL JOURNAL,965(1),25. |
| MLA | Yan, Yi,et al."Dwarf Pulses of 10 Pulsars Detected by FAST".ASTROPHYSICAL JOURNAL 965.1(2024):25. |
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来源：新疆天文台
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