Timing noise study of four pulsars
文献类型：期刊论文
| 作者 | Zhang CaiHong1,2; Wang Na3 ; Yuan JianPing3; Liu ZhiYong3; Liu JingNan2; Nie GuiGen2
|
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 致密天体、高能和基础物理 |
| 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 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/410]  |
| 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 |
| 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. |
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来源：新疆天文台
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