Institutional Repository of Radio Astronomy Research Laboratory
| Profile Variation in PSR B0355+54 over a Narrow Frequency Range | |
Jiang, Shibo1,2,3; Li, Lin1,2 ; Yuen, Rai2,4; Yuan, Jianping2,4; Yao, Jumei2,4; Shi, Xun5; Xu, Yonghua6; Chen, Jianling7; Wen, Zhigang2,4
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| 2024-11-01 | |
| Source Publication | UNIVERSE
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| Volume | 10Issue:11Pages:416 |
| Contribution Rank | 2 |
| Abstract | We investigate changes in the shape of the averaged pulse profile in PSR B0355+54 (PSR J0358+5413) based on data obtained at the center frequency of 1250 MHz using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Our dataset consists of 12 non-consecutive observations, each lasting between 1 and 2 h. Considerable variation is observed in the averaged profiles across the observations even though each is folded from thousands of single pulses. Changes in the profile are measured through the ratio (R) between the peak intensities of the leading and trailing components. We find that the averaged pulse profile exhibits significant variation across observations, but distinctive from typical profile mode-changing. By dividing the frequency bandwidth into eight sub-bands, we demonstrate that the shape of the averaged profile undergoes significant evolution with frequency. In general, the changes in R across the sub-bands are different in different observations, but its value is uniform at low frequencies implying a more consistent emission. We demonstrate that the profile stabilization timescale for this pulsar is much longer than commonly suggested for ordinary pulsars, which is likely due to non-uniform and varying arrangement of the emission sources in the emission region. |
| Keyword | pulsars general-stars neutron-radiation mechanisms non-thermal multi-frequency PSR B0355+54 (PSR J0358+5413) |
| DOI | 10.3390/universe10110416 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | RADIO-EMISSION ALTITUDES ; PULSAR EMISSION ; MODE ; POLARIZATION ; POLARIMETRY ; DEPENDENCE ; SHAPE |
| Funding Project | National Key Research and Development Program of China ; National SKA Program of China[2020SKA0120200] ; National Key Program for Science and Technology Research and Development[2022YFC2205200] ; National Key Program for Science and Technology Research and Development[2022YFC2205201] ; National Natural Science Foundation of China (NSFC) project[12288102] ; National Natural Science Foundation of China (NSFC) project[12041303] ; National Natural Science Foundation of China (NSFC) project[12041304] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-2] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China ; National Science Foundation of Xinjiang Uygur Autonomous Region[2022D01D85] ; CAS Project for Young Scientists in Basic Research[YSBR-063] ; CAS Project for Young Scientists in Basic Research[2023TSYCTD0013] ; [2022YFC2205202] |
| WOS Research Area | Astronomy & Astrophysics ; Physics |
| WOS Subject | Astronomy & Astrophysics ; Physics, Particles & Fields |
| WOS ID | WOS:001366499700001 |
| Publisher | MDPI |
| Funding Organization | National Key Research and Development Program of China ; National SKA Program of China ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China (NSFC) project ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China ; National Science Foundation of Xinjiang Uygur Autonomous Region ; CAS Project for Young Scientists in Basic Research |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7243 |
| 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 | Li, Lin; Yuen, Rai |
| Affiliation | 1.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1-St, Urumqi 830011, Peoples R China 3.Guangxi Zhuang Autonomous Reg Meteorol Bur, Guangxi Meteorol Informat Ctr, Nanning 530022, Peoples R China 4.Chinese Acad Sci, Xinjiang Key Lab Radio Astrophys, 150 Sci 1-St, Urumqi 830011, Peoples R China 5.Yunnan Univ, South Western Inst Astron Res SWIFAR, Kunming 650500, Peoples R China 6.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China 7.Yuncheng Univ, Dept Phys & Elect Engn, Yuncheng 044000, Peoples R China |
| Recommended Citation GB/T 7714 | Jiang, Shibo,Li, Lin,Yuen, Rai,et al. Profile Variation in PSR B0355+54 over a Narrow Frequency Range[J]. UNIVERSE,2024,10(11):416. |
| APA | Jiang, Shibo.,Li, Lin.,Yuen, Rai.,Yuan, Jianping.,Yao, Jumei.,...&Wen, Zhigang.(2024).Profile Variation in PSR B0355+54 over a Narrow Frequency Range.UNIVERSE,10(11),416. |
| MLA | Jiang, Shibo,et al."Profile Variation in PSR B0355+54 over a Narrow Frequency Range".UNIVERSE 10.11(2024):416. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Jiang-2024-Profile V（591KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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