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3D MHD Numerical Simulations of Polarized Emission in the Turbulent Background from Young Type Ia Supernova Remnants
Bao, Biwen1; Yang CY(杨初源)2,3,4,5; Zhang, Li1
通讯作者Yang, Chuyuan(chyy@ynao.ac.cn)
发表期刊ASTROPHYSICAL JOURNAL
2018-10-10
卷号866期号:1页码:12
DOI10.3847/1538-4357/aadb96
产权排序第2完成单位
收录类别SCI
关键词ISM: supernova remnants magnetohydrodynamics (MHD) radiation mechanisms: non-thermal
摘要We study the polarized radio emission from young Type Ia supernova remnants by means of three-dimensional numerical MHD simulations and the assumption of relativistic electron distribution related to magnetic field energy density. In our simulations, the turbulent component of background plasma is taken into account by introducing a 3D Kolmogorov-like power spectrum. The simulation results indicate (i) the different orientations of the interstellar magnetic field around SNRs and lines of sight could produce different polarized radio emission shells, (ii) the fraction of polarization may be decreased through integrating the synchrotron emissivities along the line of sight, which is mainly due to the emission from the strong turbulent and disordered region of the magnetic field, and (iii) the total intensity is strong in some regions where the polarization degree is low.
资助项目National Science Foundation of China[11673060] ; Natural Science Foundation of Yunnan Province[2016FB003] ; Natural Science Foundation of China (NSFC)[NSFC 11433004] ; Natural Science Foundation of China (NSFC)[U 1738211]
项目资助者National Science Foundation of China ; Natural Science Foundation of Yunnan Province ; Natural Science Foundation of China (NSFC)
语种英语
学科领域天文学
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP PUBLISHING LTD
ISSN0004-637X
URL查看原文
WOS记录号WOS:000446837500010
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]MAGNETIC-FIELD ; SN 1006 ; SHOCK ACCELERATION ; RADIO OBSERVATIONS ; AMPLIFICATION ; EVOLUTION ; SN-1006 ; ORIGIN
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/18047
专题高能天体物理研究组
中国科学院天体结构与演化重点实验室
通讯作者Yang CY(杨初源)
作者单位1.Department of Astronomy, School of Physics and Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, People's Republic of China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, People's Republic of China
4.Key Laboratory of Particle Astrophysics of Yunnan Province, Kunming 650091, People's Republic of China
5.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China
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Bao, Biwen,Yang CY,Zhang, Li. 3D MHD Numerical Simulations of Polarized Emission in the Turbulent Background from Young Type Ia Supernova Remnants[J]. ASTROPHYSICAL JOURNAL,2018,866(1):12.
APA Bao, Biwen,Yang CY,&Zhang, Li.(2018).3D MHD Numerical Simulations of Polarized Emission in the Turbulent Background from Young Type Ia Supernova Remnants.ASTROPHYSICAL JOURNAL,866(1),12.
MLA Bao, Biwen,et al."3D MHD Numerical Simulations of Polarized Emission in the Turbulent Background from Young Type Ia Supernova Remnants".ASTROPHYSICAL JOURNAL 866.1(2018):12.
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