On the angular momentum of compact binary coalescence

被引：1
|
作者：
He, Xiaokai [1 ]
Wu, Xiaoning [2 ,3 ]
Xie, Naqing [4 ]
机构：
[1] Hunan First Normal Univ, Sch Math & Stat, Changsha 410205, Peoples R China
[2] Chinese Acad Sci, Inst Math, Acad Math & Syst Sci, Beijing 100190, Peoples R China
[3] Chinese Acad Sci, Hua Loo Keng Key Lab, Beijing 100190, Peoples R China
[4] Fudan Univ, Sch Math Sci, Shanghai 200433, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2023年 / 75卷 / 04期
基金：
中国国家自然科学基金;
关键词：
gravitational wave; angular momentum; compact binary coalescence; GENERAL-RELATIVITY; CONSERVED QUANTITIES; GRAVITATIONAL WAVES; LINKAGES;
D O I：
10.1088/1572-9494/acb7cf
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The supertranslation ambiguity issue of angular momentum is a long-standing problem in general relativity. Recently, there appeared the first definition of angular momentum at null infinity that is supertranslation invariant. However, in the compact binary coalescence community, supertranslation ambiguity is often ignored. This paper demonstrates that we have the happy circumstance that the newly defined angular momentum coincides with the classical definition at the quadrupole level.
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收藏
页数：9
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