中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 云南天文台
  3. 中国科学院云南天文台
  4. 大样本恒星演化研究组
Unveiling the nature of gravitational-wave emission in core-collapse supernovae with perturbative analysis

文献类型：期刊论文

作者Cha S(查帅)2; Andersen, Oliver Eggenberger1; O’Connor, Evan P.1
刊名PHYSICAL REVIEW D
出版日期2024-04-16
卷号109期号:8
ISSN号2470-0010
DOI10.1103/PhysRevD.109.083023
产权排序第1完成单位
文献子类Article
英文摘要Gravitational waves (GWs) can provide crucial information about the central engines of core-collapse supernovae (CCSNe). In order to unveil the nature of GW emission in CCSNe, we apply perturbative analyses with the same underlying equations as simulations to diagnose oscillations of the proto-neutron star (PNS) during -1 s postbounce. In the pseudo-Newtonian case, we find that radial profiles of GW emission match well between the perturbative analysis with l = 2 and simulations inside the PNS at any frequency and time. This confirms that the GW emission of CCSNe arises from the global PNS oscillations in the perturbative regime. Based on this, we solve for the discrete eigenmodes with a free PNS surface and tentatively identify a set of g modes and the f mode contributing to the peak GW emission. We also offer a possible explanation for the power gap in the GW spectrum found in simulations that lies at the frequency with vanishing cumulative emission of the PNS. Our results enhance the predictive power of perturbative analyses in the GW signals of CCSNe.
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HYDRODYNAMICS ; NEUTRINO ; ASTEROSEISMOLOGY ; RADIATION ; SIGNALS
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 Centre of Supernovae, Yunnan Key Laboratory[202302AN360001]; Swedish Research Council[2022-06725]; Swedish Research Council[2018-05973]; Swedish Research Council[2020-00452]; 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:001221668800004
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 Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] ; Swedish Research Council[2022-06725, 2018-05973, 2020-00452] ; 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/114a53/27199]  
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.The Oskar Klein Centre, Department of Astronomy, Stockholm University, AlbaNova, SE-106 91 Stockholm, Sweden
2.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming 650216, China, Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, China, and International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, China;
推荐引用方式
GB/T 7714		 Cha S,Andersen, Oliver Eggenberger,O’Connor, Evan P.. Unveiling the nature of gravitational-wave emission in core-collapse supernovae with perturbative analysis[J]. PHYSICAL REVIEW D,2024,109(8).
APA 查帅,Andersen, Oliver Eggenberger,&O’Connor, Evan P..(2024).Unveiling the nature of gravitational-wave emission in core-collapse supernovae with perturbative analysis.PHYSICAL REVIEW D,109(8).
MLA 查帅,et al."Unveiling the nature of gravitational-wave emission in core-collapse supernovae with perturbative analysis".PHYSICAL REVIEW D 109.8(2024).

入库方式： OAI收割

来源：云南天文台

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。