A Very Large Glitch in PSR B2334+61

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	A Very Large Glitch in PSR B2334+61
	J. P. Yuan1,2 ; R. N. Manchester 3; N.Wang1 ; X.Zhou1 ; Z.Y.Liu1 ; Z. F. Gao1,2
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2010-08
卷号	719 期号:2 页码:111-115
关键词	pulsars PSR B2334+61 neutron stars
ISSN号	2041-8205
通讯作者	na.wang@uao.ac.cn
英文摘要	Seven year pulse time-of-arrival measurements have been collected from observations of the young pulsar PSR B2334+61 using the Nanshan radio telescope of Urumqi Observatory. A phase-connected solution has been obtained over the whole data span, 2002 August to 2009 August. This includes a very large glitch that occurred between 2005 August 26 and September 8 (MJDs 53608 and 53621). The relative increase in rotational frequency for this glitch, Delta v(g)/v similar to 20.5x10(-6), is the largest ever seen. Although accounting for less than 1% of the glitch, there were two well-defined exponential decay terms with time constants of 21 and 147 days, respectively. There was also a large long-term increase in the spin-down rate with Delta(v) over dot(p)/(v) over dot similar to 0.011 at the time of the glitch. A highly significant oscillation with a period of close to one year is seen in the post-glitch residuals. It is very unlikely that this can be accounted for by a pulsar position error or proper motion-it appears to result from effects interior to the neutron star. Implications of these results for pulsar glitch models are discussed.
学科主题	致密天体、高能和基础物理
收录类别	SCI
资助信息	国家自然科学基金
原文出处	http://iopscience.iop.org/2041-8205
语种	英语
WOS记录号	WOS:000281199900001
公开日期	2013-03-06
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/105]
专题	脉冲星研究团组新疆天文台_射电天文研究室新疆天文台_其它
作者单位	1.Urumqi Observatory, NAOC, 40-5 South Beijing Road, Urumqi, Xinjiang 830011, China 2.Graduate University of CAS, 19A Yuquan Road, Beijing 100049, China 3.CSIRO Astronomy and Space Science, Australia Telescope National Facility, P.O. Box 76, Epping, NSW 1710, Australia
推荐引用方式 GB/T 7714	J. P. Yuan,R. N. Manchester,N.Wang,et al. A Very Large Glitch in PSR B2334+61[J]. ASTROPHYSICAL JOURNAL LETTERS ,2010,719(2):111-115.
APA	J. P. Yuan,R. N. Manchester,N.Wang,X.Zhou,Z.Y.Liu,&Z. F. Gao.(2010).A Very Large Glitch in PSR B2334+61.ASTROPHYSICAL JOURNAL LETTERS ,719(2),111-115.
MLA	J. P. Yuan,et al."A Very Large Glitch in PSR B2334+61".ASTROPHYSICAL JOURNAL LETTERS 719.2(2010):111-115.