Proper way to spatially decompose the gravitational-wave origin in stellar collapse simulations

doi:10.1103/PhysRevD.110.083034

YNAO OpenIR > 大样本恒星演化研究组

	Proper way to spatially decompose the gravitational-wave origin in stellar collapse simulations
	Cha S(查帅)1,2,3
发表期刊	PHYSICAL REVIEW D
	2024-10-18
卷号	110 期号:8
DOI	10.1103/PhysRevD.110.083034
产权排序	第1完成单位
收录类别	SCI
摘要	Gravitational waves (GWs) hold great potential for an unobscured view of protoneutron stars (PNSs) formed as a result of stellar collapses. While waiting for discovery, deepening the understanding of GW emission in theory is beneficial for both optimizing searching strategies and deciphering the eventual data. One significant aspect is the spatially dependent contribution to the overall GW signal extracted from sophisticated hydrodynamic simulations. I present the proper way to perform the spatial decomposition of GW strain with the quadrupole formula in the slow-motion and weak-field approximation. Then I demonstrate the approach using the results of a 2D axisymmetric pseudo-Newtonian hydrodynamic simulation of core-collapse supernova. I show a detailed comparison between the proper and improper methods and discuss the possible consequences based on the improper method. Moreover, with the correct approach, the GW spatial profiles agree well with those calculated from a consistent perturbative method.
资助项目	National Natural Science Foundation of China (NSFC)[12288102]; National Natural Science Foundation of China (NSFC)[12393811]; National Natural Science Foundation of China (NSFC)[12090040/3]; National Key R&D Program of China[2021YFA1600401]; National Key R&D Program of China[2021YFA1600400]; International center of Supernovae, Yunnan Key Laboratory[202302AN360001]; Natural Science Foundation of Yunnan Province[202201BC070003]; Yunnan Fundamental Research Project[202401BC070007]
项目资助者	National Natural Science Foundation of China (NSFC)[12288102, 12393811, 12090040/3] ; National Key R&D Program of China[2021YFA1600401, 2021YFA1600400] ; International center of Supernovae, Yunnan Key Laboratory[202302AN360001] ; Natural Science Foundation of Yunnan Province[202201BC070003] ; Yunnan Fundamental Research Project[202401BC070007]
语种	英语
学科领域	天文学 ; 恒星与银河系
文章类型	Article
出版者	AMER PHYSICAL SOC
出版地	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
ISSN	2470-0010
URL	查看原文
WOS记录号	WOS:001343522900004
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
关键词[WOS]	CORE-COLLAPSE ; NEWTONIAN HYDRODYNAMICS ; RELATIVISTIC REGIME ; NEUTRINO ; SIGNALS ; CODE
引用统计
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27671
专题	大样本恒星演化研究组中国科学院天体结构与演化重点实验室
作者单位	1.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China; 2.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Peoples R China; 3.Int Ctr Supernovae, Yunnan Key Lab, Kunming 650216, Peoples R China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Cha S. Proper way to spatially decompose the gravitational-wave origin in stellar collapse simulations[J]. PHYSICAL REVIEW D,2024,110(8).
APA	查帅.(2024).Proper way to spatially decompose the gravitational-wave origin in stellar collapse simulations.PHYSICAL REVIEW D,110(8).
MLA	查帅."Proper way to spatially decompose the gravitational-wave origin in stellar collapse simulations".PHYSICAL REVIEW D 110.8(2024).

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Proper way to spatia（9105KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文