NAOC Open IR
The confrontation of the shock-powered synchrotron maser model with the Galactic FRB 200428
Yu, Yun-Wei1,2; Zou, Yuan-Chuan3; Dai, Zi-Gao4; Yu, Wen-Fei5
2021
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume500Issue:2Pages:2705-2711
AbstractThe association of FRB 200428 with an X-ray burst (XRB) from the Galactic magnetar SGR 1935+2154 offers important implications for the physical processes responsible for the fast radio burst (FRB) phenomena. By assuming that the XRB emission is produced in the magnetosphere, we investigate the possibility that the FRB emission is produced by shock-powered synchrotronmaser (SM), which is phenomenologically described with a number of free parameters. The observational constraints on the model parameters indicate that the model can in principle be consistent with the FRB 200428 observations, if the ejecta lunched by magnetar activities can have appropriate ingredients and structures and the shock processes occur on the line of sight. To be specific, a complete burst ejecta should consist of an ultra-relativistic and extremely highly collimated e(+/-) component and a sub-relativistic and wide-spreading baryonic component. The internal shocks producing the FRB emission arise from a collision between the e(+/-) ejecta and the remnant of a previous baryonic ejecta at the same direction. The parameter constraints depend on the uncertain spectrum and efficiency of the SM emission. While the spectrum is tentatively described by a spectral index of -2, we estimate the emission efficiency to be around 10(-4) by requiring that the synchrotron emission of the shocked material cannot be much brighter than the magnetosphere XRB emission.
Keywordstars: magnetar stars: neutron radio continuum: general
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Program on Key Re search and Development Project ; National Program on Key Re search and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Program on Key Re search and Development Project ; National Program on Key Re search and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Program on Key Re search and Development Project ; National Program on Key Re search and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Program on Key Re search and Development Project ; National Program on Key Re search and Development Project
DOI10.1093/mnras/staa3374
WOS KeywordFAST RADIO-BURSTS ; EMISSION ; ENVIRONMENT
Language英语
Funding ProjectNational Natural Science Foundation of China[11822302] ; National Natural Science Foundation of China[11833003] ; National Natural Science Foundation of China[11333005] ; National Natural Science Foundation of China[U1531130] ; Fundamental Research Funds for the Central Universities[CCNU18ZDPY06] ; National Program on Key Re search and Development Project[2016YFA0400804]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Program on Key Re search and Development Project ; National Program on Key Re search and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Program on Key Re search and Development Project ; National Program on Key Re search and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Program on Key Re search and Development Project ; National Program on Key Re search and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Program on Key Re search and Development Project ; National Program on Key Re search and Development Project
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000605983000087
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/79994
Collection中国科学院国家天文台
Corresponding AuthorYu, Yun-Wei
Affiliation1.Cent China Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China
2.Cent China Normal Univ, Minist Educ, Key Lab Quark & Lepton Phys, Wuhan 430079, Peoples R China
3.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
4.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Peoples R China
5.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Yu, Yun-Wei,Zou, Yuan-Chuan,Dai, Zi-Gao,et al. The confrontation of the shock-powered synchrotron maser model with the Galactic FRB 200428[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,500(2):2705-2711.
APA Yu, Yun-Wei,Zou, Yuan-Chuan,Dai, Zi-Gao,&Yu, Wen-Fei.(2021).The confrontation of the shock-powered synchrotron maser model with the Galactic FRB 200428.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,500(2),2705-2711.
MLA Yu, Yun-Wei,et al."The confrontation of the shock-powered synchrotron maser model with the Galactic FRB 200428".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 500.2(2021):2705-2711.
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