中国科学院机构知识库网格系统: Results of 12 yr of Pulsar Timing at Nanshan. I.

Results of 12 yr of Pulsar Timing at Nanshan. I.

文献类型：期刊论文


作者	Dang, S. J.1,2 ; Yuan, J. P.1,3 ; Manchester, R. N.4; Li, L.1,5 ; Wang, N.1,3 ; Wang, J. B.1,3 ; Hobbs, G.4; Liu, Z. Y.1,3 ; Kou, F. F.1,6
刊名	ASTROPHYSICAL JOURNAL
出版日期	2020-06-01
卷号	896 期号:2 页码:140
ISSN号	0004-637X
DOI	10.3847/1538-4357/ab9082
产权排序	1
英文摘要	We have used the Nanshan 25 m Radio Telescope at Xinjiang Astronomical Observatory to obtain timing observations of 87 pulsars from 2002 July to 2014 March. Using the "Cholesky" timing analysis method we have determined positions and proper motions for 48 pulsars, 24 of which are improved positions compared to previously published values. We also present the first published proper motions for nine pulsars and improved proper motions for 21 pulsars using the pulsar timing and position-comparison method. The pulsar rotation parameters are derived and are more accurate than previously published values for 36 pulsars. Glitches are detected in three pulsars: PSRs J1722-3632, J1852-0635, and J1957+2831. For the first two, the glitches are large, with Delta nu(g)/nu > 10(-6), and they are the first detected glitches in these pulsars. PSR J1722-3632 is the second oldest pulsar, with a large glitch. For the middle-age pulsars (tau(c) > 10(5) yr), the calculated braking indices, vertical bar n vertical bar, are strongly correlated with tau(c) and the numbers of positive and negative values of n are almost equal. For young pulsars (tau(c) < 10(5) yr), there is no correlation between vertical bar n vertical bar and tau(c) and most have n > 0.
URL标识	查看原文
WOS关键词	FREQUENCY 2ND DERIVATIVES ; BRAKING INDEXES ; PROPER MOTIONS ; RADIO PULSARS ; GLITCHES ; DISCOVERY ; NOISE
资助项目	National Key Research and Development Program of China[2016YFA0400804] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; National Natural Science Foundation of China[11463005] ; National Natural Science Foundation of China[11873080] ; Doctoral Research Start-up Fund at Xinjiang University ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; National Key R&D Program of China[2018YFA0404603]
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000548355000001
资助机构	National Key Research and Development Program of China ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; National Natural Science Foundation of China ; Doctoral Research Start-up Fund at Xinjiang University ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; National Key R&D Program of China
源URL	[http://ir.xao.ac.cn/handle/45760611-7/3568]
专题	脉冲星研究团组射电天文研究室_利用南山26米射电望远镜观测数据的文章
通讯作者	Yuan, J. P.; Wang, N.
作者单位	1.Chinese Acad Sci, XinJiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 4.CSIRO Astron & Space Sci, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia 5.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi, Xinjiang, Peoples R China 6.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Dang, S. J.,Yuan, J. P.,Manchester, R. N.,et al. Results of 12 yr of Pulsar Timing at Nanshan. I.[J]. ASTROPHYSICAL JOURNAL,2020,896(2):140.
APA	Dang, S. J..,Yuan, J. P..,Manchester, R. N..,Li, L..,Wang, N..,...&Kou, F. F..(2020).Results of 12 yr of Pulsar Timing at Nanshan. I..ASTROPHYSICAL JOURNAL,896(2),140.
MLA	Dang, S. J.,et al."Results of 12 yr of Pulsar Timing at Nanshan. I.".ASTROPHYSICAL JOURNAL 896.2(2020):140.

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Results of 12 yr of Pulsar Timing at Nanshan. I.

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