Institutional Repository of Radio Astronomy Research Laboratory
| A New Emission Mode of PSR B1859+07 | |
Wang, Tao1,2; Wang, P. F.1,2,3; Han, J. L.1,2,3; Yan, Yi1,2; Yu, Ye-Zhao4; Kou, Feifei5
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| 2023-10-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1674-4527 |
| Volume | 23Issue:10Pages:104003 |
| Contribution Rank | 5 |
| Abstract | Previous studies have identified two emission modes in PSR B1859+07: a normal mode that has three prominent components in the average profile, with the trailing one being the brightest, and an anomalous mode (i.e., the A mode) where emissions seem to be shifted to an earlier phase. Within the normal mode, further analysis has revealed the presence of two submodes, i.e., the cW mode and cB mode, where the central component can appear either weak or bright. As for the anomalous mode, a new bright component emerges in the advanced phase while the bright trailing component in the normal mode disappears. New observations of PSR B1859+07 using the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) have revealed the existence of a previously unknown emission mode, dubbed the Af mode. In this mode, all emission components seen in the normal and anomalous modes are detected. Notably, the mean polarization profiles of both the A and Af modes exhibit a jump in the orthogonal polarization angle modes in the bright leading component. The polarization angles for the central component in the original normal mode follow two distinct orthogonal polarization modes in the A and Af modes respectively. The polarization angles for the trailing component show almost the same but a small systematic shift in the A and Af modes, roughly following the values for the cW and cB modes. Those polarization features of this newly detected emission mode imply that the anomalous mode A of PSR B1859+07 is not a result of "phase shift" or "swooshes" of normal components, but simply a result of the varying intensities of different profile components. Additionally, subpulse drifting has been detected in the leading component of the Af mode. |
| Keyword | (stars:) pulsars: individual (PSR B1859+07) polarization plasmas |
| DOI | 10.1088/1674-4527/acd596 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | PULSARS ; B0919+06 |
| Funding Project | National Key R&D Program of China[2021YFA1600401] ; National Key R&D Program of China[2021YFA1600400] ; National Natural Science Foundation of China[11873058] ; National Natural Science Foundation of China[12133004] ; National Natural Science Foundation of China[11988101] ; National Natural Science Foundation of China[11833009] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001067446200001 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5520 |
| Collection | 射电天文研究室_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 |
| Corresponding Author | Wang, P. F.; Han, J. L. |
| Affiliation | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, key Lab Radio Astron & Technol, Beijing 100101, Peoples R China 4.Qiannan Normal Univ Nationalities, Duyun 558000, Peoples R China 5.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Tao,Wang, P. F.,Han, J. L.,et al. A New Emission Mode of PSR B1859+07[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2023,23(10):104003. |
| APA | Wang, Tao,Wang, P. F.,Han, J. L.,Yan, Yi,Yu, Ye-Zhao,&Kou, Feifei.(2023).A New Emission Mode of PSR B1859+07.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,23(10),104003. |
| MLA | Wang, Tao,et al."A New Emission Mode of PSR B1859+07".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 23.10(2023):104003. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Wang-2023-A New Emis（1290KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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