NAOC Open IR
A Systematic Study of the Frequency Evolution Behavior of Pulsar Pulse Profiles
Xu, X.1,2; Shang, L. H.3,4; Zhi, Q. J.1,2; Qiao, G. J.5; Dang, S. J.1,2; Bai, J. T.1,2; Zhao, R. S.1,2; Lu, J. G.6; Dong, A. J.1,2; Lin, Q. W.1,2; Zhang, D. D.1,2; Yang, H.1,2
2021-08-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume917Issue:2Pages:12
AbstractThe frequency evolution behavior of radio pulse profiles is an important clue for the radiation mechanism of a pulsar. Combined with the latest results of the European Pulsar Network and the Australia Telescope National Facility data, we systematically study the evolution of W (50) (the full width of the pulse profile at 50% of the pulsar amplitude) for 74 pulsars with frequencies from tens to thousands of megahertz. We find that 71 pulsars show "absorption" features, which indicates that the absorption is an universal phenomenon in the pulsar population and independent of the type of pulsar profile. It is found that for most pulsars, the absorption features appear in the frequency range of 100-800 MHz, and the evolution trend of W (50) at frequencies less than similar to 100 MHz and larger than similar to 800 MHz can be described as a power-law function.We quantify the absorption intensity and analyze the correlation between the absorption intensity and the pulsar parameters (such as the spin period, magnetic field, and age of the pulsar). It is found that there is no direct correlation between them. Our results will provide good samples and clues for the study of the physical mechanism of the absorption phenomenon.
Funding OrganizationNational Natural Science Foundation ; National Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Foundation of Science and Technology of Guizhou Province ; Foundation of Science and Technology of Guizhou Province ; Foundation of Guizhou Provincial Education Department ; Foundation of Guizhou Provincial Education Department ; National Natural Science Foundation ; National Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Foundation of Science and Technology of Guizhou Province ; Foundation of Science and Technology of Guizhou Province ; Foundation of Guizhou Provincial Education Department ; Foundation of Guizhou Provincial Education Department ; National Natural Science Foundation ; National Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Foundation of Science and Technology of Guizhou Province ; Foundation of Science and Technology of Guizhou Province ; Foundation of Guizhou Provincial Education Department ; Foundation of Guizhou Provincial Education Department ; National Natural Science Foundation ; National Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Foundation of Science and Technology of Guizhou Province ; Foundation of Science and Technology of Guizhou Province ; Foundation of Guizhou Provincial Education Department ; Foundation of Guizhou Provincial Education Department
DOI10.3847/1538-4357/ac0b40
WOS KeywordSCATTERING ICS MODEL ; EMPIRICAL-THEORY ; SPECTRAL BEHAVIOR ; SOUTHERN PULSARS ; POLARIZATION CHARACTERISTICS ; POLARIMETRIC OBSERVATIONS ; TMRT OBSERVATIONS ; RADIO-EMISSION ; GIANT PULSES ; WIDE-BAND
Language英语
Funding ProjectNational Natural Science Foundation[U1731238] ; National Natural Science Foundation[61875087] ; National Natural Science Foundation[U1831120] ; National Natural Science Foundation[U1838106] ; National Natural Science Foundation[61803373] ; National Natural Science Foundation[11303069] ; National Natural Science Foundation[11373011] ; National Natural Science Foundation[11873080] ; National Key R&D Program of China[2017YFB0503300] ; Foundation of Science and Technology of Guizhou Province[[2016]4008] ; Foundation of Science and Technology of Guizhou Province[[2017]5726-37] ; Foundation of Science and Technology of Guizhou Province[[2018]5769-02] ; Foundation of Guizhou Provincial Education Department[KY (2020) 003]
Funding OrganizationNational Natural Science Foundation ; National Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Foundation of Science and Technology of Guizhou Province ; Foundation of Science and Technology of Guizhou Province ; Foundation of Guizhou Provincial Education Department ; Foundation of Guizhou Provincial Education Department ; National Natural Science Foundation ; National Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Foundation of Science and Technology of Guizhou Province ; Foundation of Science and Technology of Guizhou Province ; Foundation of Guizhou Provincial Education Department ; Foundation of Guizhou Provincial Education Department ; National Natural Science Foundation ; National Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Foundation of Science and Technology of Guizhou Province ; Foundation of Science and Technology of Guizhou Province ; Foundation of Guizhou Provincial Education Department ; Foundation of Guizhou Provincial Education Department ; National Natural Science Foundation ; National Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Foundation of Science and Technology of Guizhou Province ; Foundation of Science and Technology of Guizhou Province ; Foundation of Guizhou Provincial Education Department ; Foundation of Guizhou Provincial Education Department
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000688261100001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/75825
Collection中国科学院国家天文台
Corresponding AuthorZhi, Q. J.
Affiliation1.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China
2.Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Peoples R China
3.Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, Peoples R China
4.Nanjing Univ Sci & Technol, Key Lab Adv Solid Laser, Nanjing 210094, Jiangsu, Peoples R China
5.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
6.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Xu, X.,Shang, L. H.,Zhi, Q. J.,et al. A Systematic Study of the Frequency Evolution Behavior of Pulsar Pulse Profiles[J]. ASTROPHYSICAL JOURNAL,2021,917(2):12.
APA Xu, X..,Shang, L. H..,Zhi, Q. J..,Qiao, G. J..,Dang, S. J..,...&Yang, H..(2021).A Systematic Study of the Frequency Evolution Behavior of Pulsar Pulse Profiles.ASTROPHYSICAL JOURNAL,917(2),12.
MLA Xu, X.,et al."A Systematic Study of the Frequency Evolution Behavior of Pulsar Pulse Profiles".ASTROPHYSICAL JOURNAL 917.2(2021):12.
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