Proper way to spatially decompose the gravitational-wave origin in stellar collapse simulations
文献类型：期刊论文
| 作者 | Cha S(查帅)1,2,3
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2024-10-18 |
| 卷号 | 110期号:8 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.110.083034 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA |
| WOS关键词 | CORE-COLLAPSE ; NEWTONIAN HYDRODYNAMICS ; RELATIVISTIC REGIME ; NEUTRINO ; SIGNALS ; CODE |
| 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] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001343522900004 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | 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] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/27671]  |
| 专题 | 云南天文台_大样本恒星演化研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Int Ctr Supernovae, Yunnan Key Lab, Kunming 650216, Peoples R China 2.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Peoples R China; 3.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China; |
| 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). |
入库方式： OAI收割
来源：云南天文台
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