Understanding the residual patterns of timing solutions of radio pulsars with a model of magnetic field oscillation

doi:10.1093/mnras/stw631

IHEP OpenIR

	Understanding the residual patterns of timing solutions of radio pulsars with a model of magnetic field oscillation
	Gao, XD; Zhang SN(张双南); Yi SX(易疏序); Zhang, SN; Yi, SX; Xie, Y; Fu, JN
	2016
发表期刊	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (IF:4.961[JCR-2016],4.62[5-Year])
ISSN	0035-8711
EISSN	1365-2966
卷号	459 期号:1 页码:402-418
文章类型	Article
摘要	We explain some phenomena existing generally in the timing residuals: amplitude and sign of the second derivative of a pulsar's spin-frequency ((nu) over double dot), some sophisticated residual patterns, which also change with the time span of data segments. The sample is taken from Hobbs et al., in which the pulsar's spin-frequency and its first derivative have been subtracted from the timing solution fitting. We first classify the timing residual patterns into different types based on the sign of (nu) over double dot. Then we use the magnetic field oscillation model developed in our group to fit successfully the different kinds of timing residuals with the Markov Chain Monte Carlo method. Finally, we simulate the spin evolution over 20 years for a pulsar with typical parameters and analyse the data with the conventional timing solution fitting. By choosing different segments of the simulated data, we find that most of the observed residual patterns can be reproduced successfully. This is the first time that the observed residual patterns are fitted by a model and reproduced by simulations with very few parameters. From the distribution of the different residual patterns in the P-(P) over dot diagram, we argue that (1) a single magnetic field oscillation mode exists commonly in all pulsars throughout their lifetimes; (2) there may be a transition period over the lifetimes of pulsars, in which multiple magnetic field oscillation modes exist.
关键词	stars: magnetic field stars: neutron stars: oscillation pulsars: general
DOI	10.1093/mnras/stw631
收录类别	SCI ; ADS
语种	英语
WOS记录号	WOS:000376386600031
ADS Bibcode	2016MNRAS.459..402G
ADS URL	https://ui.adsabs.harvard.edu/abs/2016MNRAS.459..402G
ADS引文	https://ui.adsabs.harvard.edu/abs/2016MNRAS.459..402G/citations
INSPIRE ID	1428638
引用统计	正在获取... 被引频次：2 [INSPIRE] 被引频次：5 [ADS]
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/248079
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Gao, XD,Zhang SN,Yi SX,et al. Understanding the residual patterns of timing solutions of radio pulsars with a model of magnetic field oscillation[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,459(1):402-418.
APA	Gao, XD.,张双南.,易疏序.,Zhang, SN.,Yi, SX.,...&Fu, JN.(2016).Understanding the residual patterns of timing solutions of radio pulsars with a model of magnetic field oscillation.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,459(1),402-418.
MLA	Gao, XD,et al."Understanding the residual patterns of timing solutions of radio pulsars with a model of magnetic field oscillation".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 459.1(2016):402-418.