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Multifrequency Study on the Mode Switching of PSR J0614+2229
Zhang, Y. R.1,2; Wang, H. G.1,3; Huang, X. J.4; Chen, J. L.5
2020-02-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume890Issue:1Pages:31
Contribution Rank3
AbstractThe mode switching phenomenon of PSR J0614+2229 was studied using the archived observations at 686, 1369, and 3100 MHz with the Parkes radio telescope that have not been published before, and combining existing observations from the literature. Over a wide frequency range from 327 to 3100 MHz, the pulsar switches between one mode occurring earlier in pulse phase (mode A) and the other mode appearing later in phase (mode B), with a generally frequency-independent phase offset between their profile peaks. The two modes are found to be different in the following aspects. (1) Mode A has a flatter spectrum than mode B, with a difference in the spectral index of about 0.5. This accounts for the phenomenon that the flux ratio between the modes A and B increases with frequency, and mode A becomes stronger than mode B above similar to 500 MHz. (2) For mode B, the flux density of the subintegrated profile is anticorrelated with the emission phase, indicating that the emission from earlier phases is relatively stronger than that from later phases; such an anticorrelation is not observed in mode A. (3) The frequency dependence of the FWHM of the two modes are opposite each other; namely, the FWHM of mode A increases with frequency, while that of mode B decreases with frequency. A possible interpretation is suggested: the longitudinal spectral variation across the two beams may be opposites of each other.
Keywordpulsars: general pulsars: individual : PSR J0614+2229 stars: neutron
DOI10.3847/1538-4357/ab65f3
Indexed BySCI
Language英语
WOS KeywordPULSAR ; RADIO ; EMISSION
Funding ProjectNational Natural Science Foundation of China[11178001] ; National Natural Science Foundation of China[11573008] ; National Natural Science Foundation of China[U1631106] ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; Australian Government
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000522095800031
PublisherIOP PUBLISHING LTD
Funding OrganizationNational Natural Science Foundation of China ; 2018 Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; Australian Government
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/3416
Collection射电天文研究室_脉冲星研究团组
Corresponding AuthorWang, H. G.
Affiliation1.Guangzhou Univ, Sch Phys & Elect Engn, Guangzhou 510006, Peoples R China
2.Univ Padua, Dept Phys & Astron, Via F Marzolo 8, I-35131 Padua, Italy
3.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
4.Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Hubei, Peoples R China
5.Yuncheng Univ, Dept Phys & Elect Engn, Yuncheng 044000, Shanxi, Peoples R China
Corresponding Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang, Y. R.,Wang, H. G.,Huang, X. J.,et al. Multifrequency Study on the Mode Switching of PSR J0614+2229[J]. ASTROPHYSICAL JOURNAL,2020,890(1):31.
APA Zhang, Y. R.,Wang, H. G.,Huang, X. J.,&Chen, J. L..(2020).Multifrequency Study on the Mode Switching of PSR J0614+2229.ASTROPHYSICAL JOURNAL,890(1),31.
MLA Zhang, Y. R.,et al."Multifrequency Study on the Mode Switching of PSR J0614+2229".ASTROPHYSICAL JOURNAL 890.1(2020):31.
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