One large glitch in PSR B1737-30 detected with the TMRT
文献类型:期刊论文
作者 | Liu Jie3; Yan Zhen3; Yuan JianPing1; Zhao RuShuang3; Huang ZhiPeng3; Wu XinJi2; Wang Na1; Shen ZhiQiang3 |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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出版日期 | 2019 |
卷号 | 19期号:5 |
关键词 | PULSAR YOUNG SUPERFLUIDITY stars: neutron pulsars: general pulsars: individual: B1737-30 |
ISSN号 | 1674-4527 |
英文摘要 | One large glitch was detected in PSR B1737-30 using data spanning from MJD 57999 to 58406 obtained with the newly built Shanghai Tian Ma Radio Telescope (TMRT). The glitch took place at the time around MJD 58232.4 when the pulsar underwent an increase in the rotation frequency of Delta nu about 1.38x10(-6) Hz, corresponding to a fractional step change of Delta nu/nu similar to 8.39 x 10(-7). Post-glitch nu gradually decreased to the pre-glitch value. The frequency derivative was observed to undergo a step change of about -9x10(-16) s(-2). Since July 1987, there have been 36 glitches already reported in PSR B1737-30 including this one. According to our analysis, the glitch size distribution is well described by a power law with an index of 1.13. The distribution of the interval between two adjacent glitches (waiting time Delta T) follows a Poisson probability density function. For PSR B1737-30, the interval is prone to be long after a large glitch. However, no correlation is found between glitch size and the interval since the previous glitch. |
资助项目 | [National Natural Science Foundation of China] ; [Strategic Priority Research Program of the Chinese Academy of Sciences] ; [Knowledge Innovation Program of the Chinese Academy of Sciences] ; [National Key R&D Program of China] |
语种 | 英语 |
源URL | [http://ir.bao.ac.cn/handle/114a11/63628] ![]() |
专题 | 中国科学院国家天文台 |
作者单位 | 1.中国科学院新疆天文台 2.北京大学 3.中国科学院国家天文台 4.上海科技大学 5.中国科学院大学 6.中国科学院紫金山天文台 |
推荐引用方式 GB/T 7714 | Liu Jie,Yan Zhen,Yuan JianPing,et al. One large glitch in PSR B1737-30 detected with the TMRT[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(5). |
APA | Liu Jie.,Yan Zhen.,Yuan JianPing.,Zhao RuShuang.,Huang ZhiPeng.,...&Shen ZhiQiang.(2019).One large glitch in PSR B1737-30 detected with the TMRT.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(5). |
MLA | Liu Jie,et al."One large glitch in PSR B1737-30 detected with the TMRT".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.5(2019). |
入库方式: OAI收割
来源:国家天文台
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