NAOC Open IR
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
2021-09-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume918Issue:2Pages:8
AbstractWe 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.
Funding OrganizationChinese National Science Foundation ; Chinese National Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National SKA Program of China ; National SKA Program of China ; Astronomical Research Centre of the Chinese Academy of Sciences ; Astronomical Research Centre of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; Xinjiang uygur autonomous region of China ; Xinjiang uygur autonomous region of China ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Chinese National Science Foundation ; Chinese National Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National SKA Program of China ; National SKA Program of China ; Astronomical Research Centre of the Chinese Academy of Sciences ; Astronomical Research Centre of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; Xinjiang uygur autonomous region of China ; Xinjiang uygur autonomous region of China ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Chinese National Science Foundation ; Chinese National Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National SKA Program of China ; National SKA Program of China ; Astronomical Research Centre of the Chinese Academy of Sciences ; Astronomical Research Centre of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; Xinjiang uygur autonomous region of China ; Xinjiang uygur autonomous region of China ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Chinese National Science Foundation ; Chinese National Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National SKA Program of China ; National SKA Program of China ; Astronomical Research Centre of the Chinese Academy of Sciences ; Astronomical Research Centre of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; Xinjiang uygur autonomous region of China ; Xinjiang uygur autonomous region of China ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing
DOI10.3847/1538-4357/ac0e90
WOS KeywordGIANT PULSES ; RADIO-EMISSION ; CRAB PULSAR ; MICROSTRUCTURE
Language英语
Funding ProjectChinese 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
Funding OrganizationChinese National Science Foundation ; Chinese National Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National SKA Program of China ; National SKA Program of China ; Astronomical Research Centre of the Chinese Academy of Sciences ; Astronomical Research Centre of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; Xinjiang uygur autonomous region of China ; Xinjiang uygur autonomous region of China ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Chinese National Science Foundation ; Chinese National Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National SKA Program of China ; National SKA Program of China ; Astronomical Research Centre of the Chinese Academy of Sciences ; Astronomical Research Centre of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; Xinjiang uygur autonomous region of China ; Xinjiang uygur autonomous region of China ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Chinese National Science Foundation ; Chinese National Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National SKA Program of China ; National SKA Program of China ; Astronomical Research Centre of the Chinese Academy of Sciences ; Astronomical Research Centre of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; Xinjiang uygur autonomous region of China ; Xinjiang uygur autonomous region of China ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Chinese National Science Foundation ; Chinese National Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National SKA Program of China ; National SKA Program of China ; Astronomical Research Centre of the Chinese Academy of Sciences ; Astronomical Research Centre of the Chinese Academy of Sciences ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; Xinjiang uygur autonomous region of China ; Xinjiang uygur autonomous region of China ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing ; Open Fund of Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000695450500001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/75692
Collection中国科学院国家天文台
Corresponding AuthorWen, Z. G.
Affiliation1.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
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):8.
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),8.
MLA Wen, Z. G.,et al."Observations of Bright Pulses from Pulsar B0031-07 at 4.82 GHz".ASTROPHYSICAL JOURNAL 918.2(2021):8.
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