NAOC Open IR
PIC Simulation of Double Plasma Resonance and Zebra Pattern of Solar Radio Bursts
Li, Chuanyang1,2; Chen, Yao1,2; Ni, Sulan1,2; Tan, Baolin3; Ning, Hao1,2; Zhang, Zilong1,2
2021-03-01
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume909Issue:1Pages:9
AbstractThe latest study has reported that plasma emission can be generated by energetic electrons of Dory-Guest-Harris distribution via the electron cyclotron maser instability (ECMI) in plasmas characterized by a large ratio of plasma oscillation frequency to electron gyro-frequency (omega(pe)/omega(ce)). In our study, on the basis of the ECMI-plasma emission mechanism, we examine the double plasma resonance (DPR) effect and the corresponding plasma emission at both harmonic (H) and fundamental (F) bands using particle-in-cell simulations with various omega(pe)/omega(ce). This allows us to directly simulate the feature of the zebra pattern (ZP) observed in solar radio bursts for the first time. We find that (1) the simulations reproduce the DPR effect nicely for the upper hybrid and Z modes, as seen from their variation of intensity and linear growth rate with omega(pe)/omega(ce), (2) the intensity of the H emission is stronger than that of the F emission by similar to 2 orders of magnitude and varies periodically with increasing omega(pe)/omega(ce), while the F emission is too weak to be significant (therefore, we suggest that it is the H emission accounting for solar ZPs), (3) the peak-valley contrast of the total intensity of H is similar to 4, and the peak lies around integer values of omega(pe)/omega(ce) (=10 and 11) for the present parameter setup. We also evaluate the effect of energy of energetic electrons on the characteristics of ECMI-excited waves and plasma radiation. The study provides novel insight on the physical origin of ZPs of solar radio bursts.
KeywordPlasma astrophysics Radio bursts Solar corona Solar activity Solar coronal radio emission
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.3847/2041-8213/abe708
Language英语
Funding ProjectNational Natural Science Foundation of China[11790303] ; National Natural Science Foundation of China[11790300] ; National Natural Science Foundation of China[11973031] ; National Natural Science Foundation of China[11750110424] ; National Natural Science Foundation of China[11873036]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000624515000001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78789
Collection中国科学院国家天文台
Corresponding AuthorChen, Yao
Affiliation1.Shandong Univ, Inst Frontier & Interdisciplinary Sci, Ctr Integrated Res Space Sci Astron & Phys, Qingdao 266237, Shandong, Peoples R China
2.Shandong Univ, Inst Space Sci, Weihai 264209, Shandong, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Li, Chuanyang,Chen, Yao,Ni, Sulan,et al. PIC Simulation of Double Plasma Resonance and Zebra Pattern of Solar Radio Bursts[J]. ASTROPHYSICAL JOURNAL LETTERS,2021,909(1):9.
APA Li, Chuanyang,Chen, Yao,Ni, Sulan,Tan, Baolin,Ning, Hao,&Zhang, Zilong.(2021).PIC Simulation of Double Plasma Resonance and Zebra Pattern of Solar Radio Bursts.ASTROPHYSICAL JOURNAL LETTERS,909(1),9.
MLA Li, Chuanyang,et al."PIC Simulation of Double Plasma Resonance and Zebra Pattern of Solar Radio Bursts".ASTROPHYSICAL JOURNAL LETTERS 909.1(2021):9.
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