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The correlation between glitch activity and pulse profile changes for the Crab pulsar
Shang, L. H.1; Zhi, Q. J.2,3; Dang, S. J.4,5; Wang, Q. S.4,5
2020-04-20
Source PublicationASTROPHYSICS AND SPACE SCIENCE
ISSN0004-640X
Volume365Issue:4Pages:70
Contribution Rank4
AbstractUsing the archival data of the Neutron star Interior Composition Explorer, we study the evolution of two-peak phase separations of the Crab pulsar's X-ray pulse profiles, and present a possible method to predict the next glitch epochs of the Crab pulsar. The phase separations increased with time in a form of quasi-periodic fluctuation. We fit the evolution of the phase separations by using a magic wave function (MW model). It is found that the increasing rates of the phase separation are 9.798 circle +/- 8.997 circle and 7.842 circle +/- 5.112 circle per century at 0.3-1.2 keV and 2-6 keV bands, respectively. The fluctuation periods of the phase separation at 0.3-1.2 keV and 2-6 keV bands are 124.907 +/- 4.936 and 121.478 +/- 3.149 days, respectively. Using the fitting results, we predict that one to three glitch activities would be observed during January and September 2020. It could be useful for guiding the telescopes timely and effectively observe the glitch activities of the Crab pulsar in the future.
KeywordPulsars individual (PSR B0531+21) Stars neutron stars X-rays stars
DOI10.1007/s10509-020-03783-9
Indexed BySCI
Language英语
WOS KeywordEVOLUTION ; STATE ; EMISSION ; ROTATION
Funding ProjectNational Natural Science Foundation[U1731238] ; National Natural Science Foundation[U1838106] ; National Natural Science Foundation[11565010] ; Science and Technology Fund of Guizhou Province[(2016)-4008] ; Science and Technology Fund of Guizhou Province[(2017)5726-37]
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000529862900001
PublisherSPRINGER
Funding OrganizationNational Natural Science Foundation ; Science and Technology Fund of Guizhou Province
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/3473
Collection射电天文研究室_脉冲星研究团组
Corresponding AuthorShang, L. H.
Affiliation1.Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, Peoples R China
2.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China
3.Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang 550001, Peoples R China
4.Chinese Acad Sci, XinJiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
5.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Shang, L. H.,Zhi, Q. J.,Dang, S. J.,et al. The correlation between glitch activity and pulse profile changes for the Crab pulsar[J]. ASTROPHYSICS AND SPACE SCIENCE,2020,365(4):70.
APA Shang, L. H.,Zhi, Q. J.,Dang, S. J.,&Wang, Q. S..(2020).The correlation between glitch activity and pulse profile changes for the Crab pulsar.ASTROPHYSICS AND SPACE SCIENCE,365(4),70.
MLA Shang, L. H.,et al."The correlation between glitch activity and pulse profile changes for the Crab pulsar".ASTROPHYSICS AND SPACE SCIENCE 365.4(2020):70.
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