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On the detection probability of neutron star glitches
Yu, M.1,2; Liu, Q. -J.3
2017-07-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume468Issue:3Pages:3031-3041
Corresponding AuthorYu, M.(vela.yumeng@gmail.com)
AbstractNeutron stars are observed to undergo small, abrupt rotational speed-up. This phenomenon is known as glitch. In pulsar timing observations, detection of a neutron star glitch is constrained by the time of occurrence of the event relative to entire observing span and observing cadences, time of occurrence of preceding/subsequent glitches relative to observing cadences and the strength of timing noise. Using the Yu et al. data sets, in this paper, we analyse the observational selection in terms of detection probability. We define partial probabilities for the constraints and use the Monte Carlo method with assuming glitches distribute uniformly to solve the complete probability formula for both group case involving 157 pulsars and individual cases for each of the seven pulsars with glitch numbers >= 5. In the simulations, numerical Bayesian inference is used for glitch identification. With the derived detection probability density and observed results, we uncover glitch size probability distribution embedded in the data for both the group and individual cases. We find the most prominent correction occurred for PSR J1341-6220, in which the exponent of the power-law model varies from the observed +0.7(-0.7)(+1.4) to -0.4(-0.4)(+1 .0). We suggest observers determine the detection probability for glitch theories, e.g. the self-organized criticality.
Keywordstars: neutron pulsars: general
DOI10.1093/mnras/stx702
WOS KeywordPULSAR TIMING ANALYSIS ; TIME-SERIES ANALYSIS ; SOUTHERN PULSARS ; CRAB PULSAR ; SPACED DATA ; NOISE ; MODEL ; PACKAGE ; TEMPO2
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000402808700042
PublisherOXFORD UNIV PRESS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/23037
Collection中国科学院紫金山天文台
Corresponding AuthorYu, M.
Affiliation1.Chinese Acad Sci, Nat Astron Observ China, 20A Datun Rd, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, 20A Datun Rd, Beijing 100012, Peoples R China
3.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Yu, M.,Liu, Q. -J.. On the detection probability of neutron star glitches[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,468(3):3031-3041.
APA Yu, M.,&Liu, Q. -J..(2017).On the detection probability of neutron star glitches.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,468(3),3031-3041.
MLA Yu, M.,et al."On the detection probability of neutron star glitches".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 468.3(2017):3031-3041.
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