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The Bright Single Pulse Emission from PSR B1133+16

文献类型：期刊论文

作者Tan,Jun7; Wen,Zhi-Gang1; Wang,Zhen1,5; Duan,Xue-Feng1; Wang,Hong-Guang1,4; Wang,Na1; Gajjar,Vishal3; Yuan,Jian-Ping1; Yuen,Rai1; Yan,Wen-Ming1
刊名Research in Astronomy and Astrophysics
出版日期2024-04-01
卷号24期号:4页码:045022
关键词(stars:) pulsars: general (stars:) pulsars: individual (PSR B1133+16) methods: observational methods: data analysis
ISSN号1674-4527
DOI10.1088/1674-4527/ad3789
产权排序2
英文摘要Abstract We have conducted a comprehensive investigation into the bright single pulse emission from PSR B1133+16 using the Giant Metrewave Radio Telescope. High time resolution data (61 μs) were obtained at a center frequency of 322 MHz with a bandwidth of 32 MHz over a continuous observation period of 7.45 hr. A total of 1082 bright pulses were sporadically detected with peak flux densities ranging from 10 to 23 times stronger than the average pulse profile. However, no giant pulse-like emission with a relative pulse energy larger than 10 and extremely short duration was detected, indicating that these bright pulses cannot be categorized as giant pulse emission. The majority of these bright pulses are concentrated in pulse phases at both the leading and trailing windows of the average pulse profile, with an occurrence ratio of approximately 2.74. The pulse energy distribution for all individual pulses can be described by a combination of two Gaussian components and a cutoff power-law with an index of α = ? 3.2. An updated nulling fraction of 15.35% ± 0.45% was determined from the energy distribution. The emission of individual pulses follows a log-normal distribution in peak flux density ratio. It is imperative that regular phase drifting in bright pulse sequence is identified in both the leading and trailing components for the first time. Possible physical mechanisms are discussed in detail to provide insights into these observations.
语种英语
CSCD记录号CSCD:7711106
WOS记录号WOS:001207485600001
出版者National Astromonical Observatories, CAS and IOP Publishing
源URL[http://ir.xao.ac.cn/handle/45760611-7/6420]  
专题脉冲星研究团组
通讯作者Wen,Zhi-Gang
作者单位1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China; wenzhigang@xao.ac.cn
2.Department of Physics and Electronic Engineering, Yuncheng University, Yuncheng 044000, China
3.Space Science Laboratory, University of California, Berkeley 94710, USA
4.School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China
5.Xinjiang Key Laboratory of Radio Astrophysics, Urumqi 830011, China
6.School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550025, China
7.Maths and Information Technology School, Yuncheng University, Yuncheng 044000, China
推荐引用方式
GB/T 7714		 Tan,Jun,Wen,Zhi-Gang,Wang,Zhen,et al. The Bright Single Pulse Emission from PSR B1133+16[J]. Research in Astronomy and Astrophysics,2024,24(4):045022.
APA Tan,Jun.,Wen,Zhi-Gang.,Wang,Zhen.,Duan,Xue-Feng.,Wang,Hong-Guang.,...&Dong,Ai-Jun.(2024).The Bright Single Pulse Emission from PSR B1133+16.Research in Astronomy and Astrophysics,24(4),045022.
MLA Tan,Jun,et al."The Bright Single Pulse Emission from PSR B1133+16".Research in Astronomy and Astrophysics 24.4(2024):045022.

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