YNAO OpenIR  > 高能天体物理研究组
The impact of different interstellar medium structures on the dynamical evolution of supernova remnants
Wang, Yueyang1; Bao, Biwen1; Yang CY(杨初源)2,3,4; Zhang, Li1
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2018-08-01
Volume478Issue:3Pages:2948-2961
DOI10.1093/mnras/sty1275
Contribution Rank第3完成单位
Indexed BySCI
KeywordMhd Turbulence Ism: Supernova Remnants
Abstract

The dynamical properties of supernova remnants (SNRs) evolving with different interstellar medium structures are investigated through performing extensive 2D magnetohydrodynamic (MHD) simulations in the cylindrical symmetry. Three cases of different interstellar medium structures are considered: the uniform medium, the turbulent medium, and the cloudy medium. Large-scale density and magnetic fluctuations are calculated and mapped into the computational domain before simulations. The clouds are set by random distribution in advance. The above configuration allows us to study the time-dependent dynamical properties and morphological evolution of the SNR evolving with different ambient structures, along with the development of the instabilities at the contact discontinuity. Our simulation results indicate that remnant morphology deviates from symmetry if the interstellar medium contains clouds or turbulent density fluctuations. In the cloudy medium case, interactions between the shock wave and clouds lead to clouds' fragmentation. The magnetic field can be greatly enhanced by stretching field lines with a combination of instabilities while the width of amplification region is quite different among the three cases. Moreover, both the width of amplification region and the maximum magnetic-field strength are closely related to the clouds' density.

Funding ProjectNational Natural Science Foundation of China[11433004] ; National Natural Science Foundation of China[U1738211] ; National Natural Science Foundation of China[11673060] ; National Natural Science Foundation of China[11661161010] ; Natural Science Foundation of Yunnan Province[2016FB003]
Funding OrganizationNational Natural Science Foundation of China[11433004, U1738211, 11673060, 11661161010] ; Natural Science Foundation of Yunnan Province[2016FB003]
Language英语
Subject Area天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000441282300008
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordEfficient Particle-acceleration ; Rayleigh-taylor Instabilities ; Magnetic-field Amplification ; Molecular Clouds ; Cosmic-rays ; Gamma-rays ; Turbulent ; Simulations ; Emission ; Density
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/17886
Collection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
Corresponding AuthorZhang, Li
Affiliation1.Department of Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, PR China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650091, PR China
3.Yunnan Observatory, Chinese Academy of Sciences, Kunming, Yunnan Province 650011, PR China
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, PR Chin
Recommended Citation
GB/T 7714
Wang, Yueyang,Bao, Biwen,Yang CY,et al. The impact of different interstellar medium structures on the dynamical evolution of supernova remnants[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,478(3):2948-2961.
APA Wang, Yueyang,Bao, Biwen,Yang CY,&Zhang, Li.(2018).The impact of different interstellar medium structures on the dynamical evolution of supernova remnants.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,478(3),2948-2961.
MLA Wang, Yueyang,et al."The impact of different interstellar medium structures on the dynamical evolution of supernova remnants".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 478.3(2018):2948-2961.
Files in This Item:
File Name/Size DocType Version Access License
The impact of differ(11267KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Yueyang]'s Articles
[Bao, Biwen]'s Articles
[Yang CY(杨初源)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Yueyang]'s Articles
[Bao, Biwen]'s Articles
[Yang CY(杨初源)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Yueyang]'s Articles
[Bao, Biwen]'s Articles
[Yang CY(杨初源)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: The impact of different interstellar medium structures on the dynamical evolution of supernova remnants.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.