KMS of Xinjiang Astronomical Observatory, CAS
| Observations of Bright Pulses from Pulsar B0031-07 at 4.82 GHz | |
Wen, Z. G.1,2,3 ; Yuen, R.1; Wang, N.1,2; Tu, Z. Y.1; Yan, Z.4; Yuan, J. P.1,2; Yan, W. M.1,2; Chen, J. L.1,5; Wang, H. G.1,6; Shen, Z. Q.4; Wang, Z.1,7; Yang, W. J.1; Duan, X. F.1,8; Zhang, Y. F.1; Wang, Y. B.1; Mao, J. W.1
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| 2021-09-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 918Issue:2Pages:57 |
| Contribution Rank | 1 |
| Abstract | We report on the detection of 146 (0.96%) bright pulses with a peak flux density >0.86 Jy from PSR B0031-07 in 4 hr of continuous observations made at 4.82 GHz, with a bandwidth of 1 GHz, using the Shanghai Tian Ma 65 m radio telescope. We find that the peak flux density distribution follows a power law with index alpha = -3.6 +/- 0.2, while the pulse energy appears to follow a logarithmic normal distribution. The bright pulses from PSR B0031-07 were observed to repeat in an irregular fashion. The intervals between bright pulses can be described with an exponentiated Weibull distribution. Furthermore, the sensitive observations at higher frequency with a short time resolution of 65.54 mu s form a reliable basis for detailed microstructure studies. Close inspection of the detected bright pulses reveals that 38 pulses exhibit well-defined quasi-periodicities. No unanimous period for the quasi-periodicities is found, and the peak flux density is independent of the micropulse width. Finally, possible physical mechanisms are discussed. |
| DOI | 10.3847/1538-4357/ac0e90 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | GIANT PULSES ; RADIO-EMISSION ; CRAB PULSAR ; MICROSTRUCTURE |
| Funding Project | Chinese National Science Foundation[U1838109] ; Chinese National Science Foundation[U1731238] ; Chinese National Science Foundation[U1831102] ; Chinese National Science Foundation[U1631106] ; Chinese National Science Foundation[11873080] ; National Natural Science Foundation of China[12041304] ; National SKA Program of China[2020SKA0120100] ; Astronomical Research Centre of the Chinese Academy of Sciences ; National Program on Key Research and Development Project[2016YFA0400804] ; Xinjiang uygur autonomous region of China ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000695450500001 |
| Publisher | IOP PUBLISHING LTD |
| Funding Organization | Chinese National Science Foundation ; National Natural Science Foundation of China ; National SKA Program of China ; Astronomical Research Centre of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; Xinjiang uygur autonomous region of China ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4272 |
| Collection | 中国科学院新疆天文台 射电天文研究室 射电天文研究室_脉冲星研究团组 射电天文研究室_数字技术实验室 |
| Corresponding Author | Wen, Z. G. |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 3.Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Guizhou, Peoples R China 4.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 5.Yuncheng Univ, Dept Phys & Elect Engn, Yuncheng 044000, Shanxi, Peoples R China 6.Guangzhou Univ, Sch Phys & Elect Engn, Guangzhou 510006, Peoples R China 7.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Xinjiang, Peoples R China 8.Key Lab Microwave Technol, Urumqi 830011, Xinjiang, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Wen, Z. G.,Yuen, R.,Wang, N.,et al. Observations of Bright Pulses from Pulsar B0031-07 at 4.82 GHz[J]. ASTROPHYSICAL JOURNAL,2021,918(2):57. |
| APA | Wen, Z. G..,Yuen, R..,Wang, N..,Tu, Z. Y..,Yan, Z..,...&Mao, J. W..(2021).Observations of Bright Pulses from Pulsar B0031-07 at 4.82 GHz.ASTROPHYSICAL JOURNAL,918(2),57. |
| MLA | Wen, Z. G.,et al."Observations of Bright Pulses from Pulsar B0031-07 at 4.82 GHz".ASTROPHYSICAL JOURNAL 918.2(2021):57. |
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| Wen-2021-Observation（2479KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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