The second post-Newtonian light propagation and its astrometric measurement in the solar system

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 历算和天文参考系研究团组

	The second post-Newtonian light propagation and its astrometric measurement in the solar system
	Deng, Xue-Mei
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS D
	2015-06-01
卷号	24 期号:7 页码:1550056
关键词	Astrometry reference systems relativity
英文摘要	The relativistic theories of light propagation are generalized by introducing two new parameters zeta and eta in the second post-Newtonian (2PN) order, in addition to the parametrized post-Newtonian (PPN) parameters gamma and beta. This new 2PN parametrized (2PPN) formalism includes the nonstationary gravitational fields and the influences of all kinds of relativistic effects. The multipolar components of gravitating bodies are taken into account as well at the first post-Newtonian (1PN) order. The equations of motion and their solutions of this 2PPN light propagation problem are obtained. Started from the definition of a measurable quantity, a gauge-invariant angle between the directions of two incoming photons for a differential measurement in astrometric observation is discussed and its formula is derived. For a precision level of a few microarcsecond (mu as) for space astrometry missions in the near future, we further consider a model of angular measurement, the Laser Astrometric Test of Relativity (LATOR)-like missions. In this case, all terms with aimed at the accuracy of similar to 1 mu as are estimated.
学科主题	天文和天体物理
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	GENERAL-RELATIVISTIC MODEL ; PREFERRED-FRAME THEORIES ; GRAVITATIONAL-FIELD ; MICROARCSECOND ASTROMETRY ; CONSERVATION LAWS ; FORMALISM ; GRAVITY ; MISSION ; SPACE ; TIME
收录类别	SCI
语种	英语
WOS记录号	WOS:000355327200013
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/14869]
专题	紫金山天文台_历算和天文参考系研究团组
作者单位	Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Deng, Xue-Mei. The second post-Newtonian light propagation and its astrometric measurement in the solar system[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D,2015,24(7):1550056.
APA	Deng, Xue-Mei.(2015).The second post-Newtonian light propagation and its astrometric measurement in the solar system.INTERNATIONAL JOURNAL OF MODERN PHYSICS D,24(7),1550056.
MLA	Deng, Xue-Mei."The second post-Newtonian light propagation and its astrometric measurement in the solar system".INTERNATIONAL JOURNAL OF MODERN PHYSICS D 24.7(2015):1550056.