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Synchrotron Polarization Radiative Transfer: Relativistic Thermal Electron Contribution
Mao JR(毛基荣)1,2,3; Covino, Stefano4; Wang JC(王建成)1,2,3
Source PublicationASTROPHYSICAL JOURNAL
2018-06-20
Volume860Issue:2Pages:7
DOI10.3847/1538-4357/aac5d9
Contribution Rank第1完成单位
Indexed BySCI
KeywordGamma-ray Burst: General Gravitational Waves Ism: Supernova Remnants Polarization Radiation Mechanisms: Non-thermal Stars: Neutron
Abstract

Relativistic thermal electrons moving in a large-scale magnetic field can produce synchrotron radiation. Linear synchrotron polarization can also be produced by the relativistic thermal electrons. In this paper, we utilize a hybrid thermal-nonthermal electron energy distribution to calculate circular synchrotron polarization. We further compute the radiative transfer of the synchrotron polarization in the optical and radio bands when we consider the contribution of the thermal electrons. We attempt to apply the polarization results to some astrophysical objects, such as kilonova like AT 2017gfo/GW170817, the fast radio burst (FRB), the gamma-ray burst afterglow, and the supernova remnant. The large optical depth of radiative transfer affects the small polarization degrees of these populations when the media surrounding the synchrotron sources take heavy absorption to the polarized photons. We need a strong magnetic field in our model to reproduce the linear and circular polarization properties that were observed in FRB 140514. This indicates that FRBs have a neutron star origin.

Funding ProjectNational Natural Science Foundation of China[11673062] ; National Natural Science Foundation of China[11573060] ; National Natural Science Foundation of China[11661161010] ; Hundred Talent Program of Chinese Academy of Sciences ; Major Program of Chinese Academy of Sciences[KJZD-EW-M06] ; Oversea Talent Program of Yunnan Province ; ASI-INAF grant[I/004/11/3]
Funding OrganizationNational Natural Science Foundation of China[11673062, 11573060, 11661161010] ; Hundred Talent Program of Chinese Academy of Sciences ; Major Program of Chinese Academy of Sciences[KJZD-EW-M06] ; Oversea Talent Program of Yunnan Province ; ASI-INAF grant[I/004/11/3]
Language英语
Subject Area天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS IDWOS:000436030500003
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordFast Radio-burst ; Turbulent Magnetic-field ; Cosmic-ray Transport ; Circular-polarization ; Cold Media ; Models ; Shell ; Acceleration ; Environment ; Afterglow
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12409
Collection丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
Corresponding AuthorMao JR(毛基荣)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, Yunnan Province, People's Republic of China
2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, People's Republic of China
4.Brera Astronomical Observatory, via Bianchi 46, I-23807, Merate (LC), Italy
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Mao JR,Covino, Stefano,Wang JC. Synchrotron Polarization Radiative Transfer: Relativistic Thermal Electron Contribution[J]. ASTROPHYSICAL JOURNAL,2018,860(2):7.
APA Mao JR,Covino, Stefano,&Wang JC.(2018).Synchrotron Polarization Radiative Transfer: Relativistic Thermal Electron Contribution.ASTROPHYSICAL JOURNAL,860(2),7.
MLA Mao JR,et al."Synchrotron Polarization Radiative Transfer: Relativistic Thermal Electron Contribution".ASTROPHYSICAL JOURNAL 860.2(2018):7.
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