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Phase Evolution of the Crab Pulsar between Radio and X-Ray

文献类型：期刊论文

作者Yuan, J. P.2; Du, Y. J.1; Han, J. L.4; Lu, Y.5; Zhang, S. N.5; Tong, H.2; Tuo, Y. L.3,5; Lu, F. J.5; Zheng, S. J.5; Ge, M. Y.5
刊名ASTROPHYSICAL JOURNAL
出版日期2017-08-20
卷号845期号:2
关键词Stars: Neutron Pulsars: Individual (Psr b0531+21) X-rays: Stars
DOI10.3847/1538-4357/aa7ff6
文献子类Article
英文摘要We study the X-ray phases of the Crab pulsar utilizing the 11-year observations from the Rossi X-ray Timing Explorer, 6-year radio observations from Nanshan Telescope, and the ephemeris from Jodrell Bank Observatory. It is found that the X-ray phases in different energy bands and the radio phases from the Nanshan Telescope show similar behaviors, including long-time evolution and short-time variations. Such strong correlations between the X-ray and radio phases imply that the radio and X-ray timing noises are both generated from the pulsar spin that cannot be well described by the the monthly ephemeris from the Jodrell Bank observatory. When using the Nanshan phases as references to study the X-ray timing noise, it has a significantly smaller variation amplitude and shows no long-time evolution, with a change rate of (-1.1 +/- 1.1)x10(-7) periods per day. These results show that the distance of the X-ray and radio emission regions on the Crab pulsar has no detectable secular change, and it is unlikely that the timing noises resulted from any unique physical processes in the radio or X-ray emitting regions. The similar behaviors of the X-ray and radio timing noises also imply that the variation of the interstellar medium is not the origin of the Crab pulsar's timing noises, which is consistent with the results obtained from the multifrequency radio observations of PSR B1540-06.
WOS关键词ENERGY GAMMA-RAYS ; TIMING-EXPLORER ; TELESCOPE ; PACKAGE ; TEMPO2 ; NEBULA ; NOISE
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000408111400005
资助机构National Key Research and Development Program of China(2016YFA0400802) ; National Key Research and Development Program of China(2016YFA0400802) ; National Science Foundation of China(11233001 ; National Science Foundation of China(11233001 ; Strategic Priority Research Program on Space Science ; Strategic Priority Research Program on Space Science ; Chinese Academy of Sciences(XDA04010300 ; Chinese Academy of Sciences(XDA04010300 ; Trainee Program of Qian Xuesen Laboratory of Space Technology ; Trainee Program of Qian Xuesen Laboratory of Space Technology ; 11503027 ; 11503027 ; XDB23000000) ; XDB23000000) ; 11303069) ; 11303069) ; National Key Research and Development Program of China(2016YFA0400802) ; National Key Research and Development Program of China(2016YFA0400802) ; National Science Foundation of China(11233001 ; National Science Foundation of China(11233001 ; Strategic Priority Research Program on Space Science ; Strategic Priority Research Program on Space Science ; Chinese Academy of Sciences(XDA04010300 ; Chinese Academy of Sciences(XDA04010300 ; Trainee Program of Qian Xuesen Laboratory of Space Technology ; Trainee Program of Qian Xuesen Laboratory of Space Technology ; 11503027 ; 11503027 ; XDB23000000) ; XDB23000000) ; 11303069) ; 11303069)
源URL[http://ir.bao.ac.cn/handle/114a11/20127]  
专题国家天文台_射电天文研究部
作者单位1.Qian Xuesen Lab Space Technol, 104 Youyi Rd, Beijing 100094, Peoples R China
2.Chinese Acad Sci, Xinjiang Astron Observ, Xinjiang 830011, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, Jia 20 Datun Rd, Beijing 100012, Peoples R China
5.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, J. P.,Du, Y. J.,Han, J. L.,et al. Phase Evolution of the Crab Pulsar between Radio and X-Ray[J]. ASTROPHYSICAL JOURNAL,2017,845(2).
APA Yuan, J. P..,Du, Y. J..,Han, J. L..,Lu, Y..,Zhang, S. N..,...&Yan, L. L..(2017).Phase Evolution of the Crab Pulsar between Radio and X-Ray.ASTROPHYSICAL JOURNAL,845(2).
MLA Yuan, J. P.,et al."Phase Evolution of the Crab Pulsar between Radio and X-Ray".ASTROPHYSICAL JOURNAL 845.2(2017).

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