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Discovery of State Transition Behaviors in PSR J1124-5916

文献类型：期刊论文

作者Ge, M. Y.1; Yuan, J. P.2,3; Lu, F. J.1; Tong, H.4; Zhou, S. Q.5; Yan, L. L.6; Wang, L. J.1; Tuo, Y. L.1,7; Li, X. F.1; Song, L. M.1,7
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2020-09-01
卷号900期号:1页码:7
关键词Rotation powered pulsars Radio pulsars
ISSN号2041-8205
DOI10.3847/2041-8213/abaeed
产权排序2
英文摘要With the 12 year long observations by Fermi-LAT, we discover two pairs of spin-down state transitions of PSR J1124-5916, making it the second young pulsar detected to have such behaviors. PSR J1124-5916 shows mainly two states according to its spin-down rate evolution, the normal spin-down state and the low spin-down state. In about 80% of the observation time, the pulsar is in the normal spin-down state, in which the spin-down rate decreases linearly and gives a braking index of 1.98 0.04. The two transitions to the low spin-down state are in MJD 55183-55803 and MJD 56114-56398, respectively, with fractional amplitudes both similar to 0.4%. No significant difference between the gamma-ray profiles of the two spin-down states is detected, which is similar to PSR B0540-69, the other young pulsar with state transition detected.
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WOS关键词LARGE-AREA TELESCOPE ; BRAKING INDEX ; PULSAR
资助项目National Key R&D Program of China[2016YFA0400800] ; National Natural Science Foundation of China[U1938109] ; National Natural Science Foundation of China[U1838201] ; National Natural Science Foundation of China[U1838202] ; National Natural Science Foundation of China[11873080] ; National Natural Science Foundation of China[11903001] ; National Natural Science Foundation of China[U1838104] ; National Natural Science Foundation of China[U1838101]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000566425600001
出版者IOP PUBLISHING LTD
资助机构National Key R&D Program of China ; National Natural Science Foundation of China
源URL[http://ir.xao.ac.cn/handle/45760611-7/3645]  
专题恒星形成与演化研究团组
通讯作者Ge, M. Y.
作者单位1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Xinjiang Astron Observ, Xinjiang 830011, Peoples R China
3.Chinese Acad Sci, Ctr Astron Megasci, Beijing 100012, Peoples R China
4.Guangzhou Univ, Sch Phys & Elect Engn, Guangzhou 510006, Peoples R China
5.China West Normal Univ, Sichuan 637002, Peoples R China
6.Anhui Jianzhu Univ, Sch Math & Phys, Hefei 230601, Peoples R China
7.Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Ge, M. Y.,Yuan, J. P.,Lu, F. J.,et al. Discovery of State Transition Behaviors in PSR J1124-5916[J]. ASTROPHYSICAL JOURNAL LETTERS,2020,900(1):7.
APA Ge, M. Y..,Yuan, J. P..,Lu, F. J..,Tong, H..,Zhou, S. Q..,...&Song, L. M..(2020).Discovery of State Transition Behaviors in PSR J1124-5916.ASTROPHYSICAL JOURNAL LETTERS,900(1),7.
MLA Ge, M. Y.,et al."Discovery of State Transition Behaviors in PSR J1124-5916".ASTROPHYSICAL JOURNAL LETTERS 900.1(2020):7.

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来源：新疆天文台

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