A dynamical approach in exploring the unknown mass in the Solar system using pulsar timing arrays

doi:10.1093/mnras/stx3326

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	A dynamical approach in exploring the unknown mass in the Solar system using pulsar timing arrays
	Guo, Y. J.1; Lee, K. J.1,2; Caballero, R. N.3
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2018-04-01
卷号	475 期号:3 页码:3644-3653
关键词	methods: data analysis minor planets, asteroids: general pulsars: general
ISSN号	0035-8711
DOI	10.1093/mnras/stx3326
英文摘要	The error in the Solar system ephemeris will lead to dipolar correlations in the residuals of pulsar timing array for widely separated pulsars. In this paper, we utilize such correlated signals, and construct a Bayesian data-analysis framework to detect the unknown mass in the Solar system and to measure the orbital parameters. The algorithm is designed to calculate the waveform of the induced pulsar-timing residuals due to the unmodelled objects following the Keplerian orbits in the Solar system. The algorithm incorporates a Bayesian-analysis suit used to simultaneously analyse the pulsar-timing data of multiple pulsars to search for coherent waveforms, evaluate the detection significance of unknown objects, and to measure their parameters. When the object is not detectable, our algorithm can be used to place upper limits on the mass. The algorithm is verified using simulated data sets, and cross-checked with analytical calculations. We also investigate the capability of future pulsar-timing-array experiments in detecting the unknown objects. We expect that the future pulsar-timing data can limit the unknown massive objects in the Solar system to be lighter than 10(-11)-10(-12) M-circle dot or measure the mass of Jovian system to a fractional precision of 10(-8)-10(-9).
资助项目	National Basic Research Program of China[XDB23010200] ; 973 Program[2015CB857101] ; NSFC[U15311243] ; NSFC[11690024] ; NSFC[11373011] ; MPG ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase)[U1501501]
WOS关键词	DATA RELEASE ; DARK-MATTER ; CONSTRAINTS ; ASTROMETRY ; PLANETS ; PACKAGE ; TEMPO2 ; LIMITS ; NOISE ; MODEL
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000427141900055
资助机构	National Basic Research Program of China ; National Basic Research Program of China ; 973 Program ; 973 Program ; NSFC ; NSFC ; MPG ; MPG ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase) ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase) ; National Basic Research Program of China ; National Basic Research Program of China ; 973 Program ; 973 Program ; NSFC ; NSFC ; MPG ; MPG ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase) ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase) ; National Basic Research Program of China ; National Basic Research Program of China ; 973 Program ; 973 Program ; NSFC ; NSFC ; MPG ; MPG ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase) ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase) ; National Basic Research Program of China ; National Basic Research Program of China ; 973 Program ; 973 Program ; NSFC ; NSFC ; MPG ; MPG ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase) ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase)
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/37162]
专题	中国科学院国家天文台
通讯作者	Lee, K. J.
作者单位	1.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany
推荐引用方式 GB/T 7714	Guo, Y. J.,Lee, K. J.,Caballero, R. N.. A dynamical approach in exploring the unknown mass in the Solar system using pulsar timing arrays[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,475(3):3644-3653.
APA	Guo, Y. J.,Lee, K. J.,&Caballero, R. N..(2018).A dynamical approach in exploring the unknown mass in the Solar system using pulsar timing arrays.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,475(3),3644-3653.
MLA	Guo, Y. J.,et al."A dynamical approach in exploring the unknown mass in the Solar system using pulsar timing arrays".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475.3(2018):3644-3653.