Timing noise study of four pulsars

CORC > 新疆天文台 > 研究单元未命名 > 射电天文研究室 > 脉冲星研究团组

	Timing noise study of four pulsars
	Zhang CaiHong 1,2; Wang Na3 ; Yuan JianPing3 ; Liu ZhiYong3 ; Liu JingNan 2; Nie GuiGen 2
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2012-02-01
卷号	55 期号:2 页码:333-338
关键词	pulsar observation red noise morphology filter power spectrum
ISSN号	1674-7348
通讯作者	frankzhangch@163.com
合作状况	国内合作
英文摘要	Analyzing up to ten years of pulsar timing data observed by the 25-m Nanshan telescope at Urumqi, China, we studied power spectra of timing residuals for four pulsars based on orthogonal polynomials. Our work reveals that an index of -4 is consistent with a power law model and reveals random walk noise in the rotating frequency. Stability with Delta(8) is investigated and found to be consistent with previous results. A new method called the morphology filter is applied to denoise the pulsar timing residuals and to perform further spectrum analysis. The spectra obtained with this method are improved in accuracy compared with those from timing residuals of pulsars directly.
学科主题	致密天体、高能和基础物理
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	CRAB PULSAR ; MAGNETOSPHERIC FLUCTUATIONS ; SOUTHERN PULSARS ; SPECTRUM ; GLITCHES ; TIME
收录类别	SCI
资助信息	Fundamental Research Funds for the Central Universities; the National Natural Science Foundation of China (Grant Nos.41074023 and 10903019); Knowledge Innovation Program of CAS project (Grant No. KJCX2-YW-T09); National Basic Research Program of China (G
原文出处	http://link.springer.com/journal/11433
语种	英语
WOS记录号	WOS:000299295500021
公开日期	2014-12-12
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/410]
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.Wuhan Univ, Sch Geodesy & Geomat, Wuhan 430079, Peoples R China 2.Wuhan Univ, Global Nav Satellite Syst Res Ctr, Wuhan 430079, Peoples R China 3.NAOC, Urumqi Observ, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Zhang CaiHong,Wang Na,Yuan JianPing,et al. Timing noise study of four pulsars[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(2):333-338.
APA	Zhang CaiHong,Wang Na,Yuan JianPing,Liu ZhiYong,Liu JingNan,&Nie GuiGen.(2012).Timing noise study of four pulsars.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(2),333-338.
MLA	Zhang CaiHong,et al."Timing noise study of four pulsars".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.2(2012):333-338.