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
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
EISSN1365-2966
Volume459Issue:1Pages:402-418
SubtypeArticle
AbstractWe 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.
Keywordstars: magnetic field stars: neutron stars: oscillation pulsars: general
DOI10.1093/mnras/stw631
Indexed BySCI ; ADS
Language英语
WOS IDWOS:000376386600031
ADS Bibcode2016MNRAS.459..402G
ADS URLhttps://ui.adsabs.harvard.edu/abs/2016MNRAS.459..402G
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2016MNRAS.459..402G/citations
inspireid1428638
Citation statistics
Cited Times:2 [INSPIRE]
Cited Times:4 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/248079
Collection中国科学院高能物理研究所
Recommended Citation
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.
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