Statistical analyses for NANOGrav 5-year timing residuals
Statistical analyses for NANOGrav 5-year timing residuals
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NANOGrav 5 年时间残差的统计分析
DOI：
10.1088/1674-4527/17/2/19
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发表时间：
2016-10
影响因子：
1.8
通讯作者：
Vallisneri Michele
中科院分区：
文献类型：
--
作者：
Wang Yan;Cordes James M.;Jenet Fredrick A.;Chatterjee Shami;Demorest Paul B.;Dolch Timothy;Ellis Justin A.;Lam Michael T.;Madison Dustin R.;McLaughlin Maura A.;Perrodin Delphine;Rankin Joanna;Siemens Xavier;Vallisneri Michele
在脉冲星计时中，计时残差是观测到的到达时间与计时模型预测的时间之间的差异。一个全面的计时模型将产生无特征的残差，这可能是由主要的噪声和弱的物理效应排除在计时模型（如引力波）。为了应用最佳统计方法检测微弱引力波信号，我们需要知道残差中噪声分量的统计特性。利用2005 - 2010年北美纳赫引力波天文台（NANOGrav）的阿雷西博天文台和绿色班克望远镜（Bank Telescope）的5年计时数据，采用多种非参数统计检验方法，对白度和高斯性进行了分析。我们发现，大多数数据是一致的白色噪声，许多数据偏离高斯在不同程度上，然而，在一些样本中删除离群值将减轻偏差。
In pulsar timing, timing residuals are the differences between the observed times of arrival and predictions from the timing model. A comprehensive timing model will produce featureless residuals, which are presumably composed of dominating noise and weak physical effects excluded from the timing model (e.g. gravitational waves). In order to apply optimal statistical methods for detecting weak gravitational wave signals, we need to know the statistical properties of noise components in the residuals. In this paper we utilize a variety of non-parametric statistical tests to analyze the whiteness and Gaussianity of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) 5-year timing data, which are obtained from Arecibo Observatory and Green Bank Telescope from 2005 to 2010. We find that most of the data are consistent with white noise; many data deviate from Gaussianity at different levels, nevertheless, removing outliers in some pulsars will mitigate the deviations.
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DOI：
10.1111/j.1365-2966.2011.18613.x
发表时间：
2011-03
影响因子：
4.8
作者：
R. V. Haasteren;Y. Levin;Y. Levin;G. Janssen;K. Lazaridis;M. Kramer;B. Stappers;B. Stappers;G. Desvignes;G. Desvignes;G. Desvignes;M. Purver;A. Lyne;R. Ferdman;R. Ferdman;A. Jessner;I. Cognard;I. Cognard;G. Theureau;G. Theureau;N. D'Amico;N. D'Amico;A. Possenti;M. Burgay;A. Corongiu;J. Hessels;J. Hessels;R. Smits;R. Smits;J. Verbiest
通讯作者：
R. V. Haasteren;Y. Levin;Y. Levin;G. Janssen;K. Lazaridis;M. Kramer;B. Stappers;B. Stappers;G. Desvignes;G. Desvignes;G. Desvignes;M. Purver;A. Lyne;R. Ferdman;R. Ferdman;A. Jessner;I. Cognard;I. Cognard;G. Theureau;G. Theureau;N. D'Amico;N. D'Amico;A. Possenti;M. Burgay;A. Corongiu;J. Hessels;J. Hessels;R. Smits;R. Smits;J. Verbiest
DOI：
10.1088/2041-8205/720/2/l201
发表时间：
2010-08
期刊：
The Astrophysical Journal Letters
影响因子：
--
作者：
D. Champion;D. Champion;G. Hobbs;R. Manchester;R. Edwards;D. Backer;M. Bailes;N. Bhat;S. Burke-Spolaor;S. Burke-Spolaor;W. Coles;P. Demorest;R. Ferdman;W. Folkner;A. Hotan;M. Kramer;A. Lommen;D. Nice;M. Purver;J. Sarkissian;I. Stairs;W. Straten;J. Verbiest;D. Yardley;D. Yardley
通讯作者：
D. Champion;D. Champion;G. Hobbs;R. Manchester;R. Edwards;D. Backer;M. Bailes;N. Bhat;S. Burke-Spolaor;S. Burke-Spolaor;W. Coles;P. Demorest;R. Ferdman;W. Folkner;A. Hotan;M. Kramer;A. Lommen;D. Nice;M. Purver;J. Sarkissian;I. Stairs;W. Straten;J. Verbiest;D. Yardley;D. Yardley
用脉冲星定时阵列探测和定位连续引力波：脉冲星项的作用
影响因子：
4.8
作者：
Zhu X. -J.;Wen L.;Xiong J.;Xu Y.;Wang Y.;Mohanty S. D.;Hobbs G.;Manchester R. N.
通讯作者：
Manchester R. N.
影响因子：
4.9
作者：
Arzoumanian, Zaven;Brazier, Adam;Zhu, Weiwei
通讯作者：
Zhu, Weiwei
DOI：
10.1098/rsta.1992.0088
发表时间：
1992-10
期刊：
Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences
影响因子：
--
作者：
Joseph H. Taylor
通讯作者：
Joseph H. Taylor