Statistics of Low Frequency Cutoffs for Type III Radio Bursts Observed by Parker Solar Probe during Its Encounters 1–5
文献类型:期刊论文
作者 | Ma,Bing1,2; Chen,Ling2,3; Wu,Dejin2; Bale,Stuart D.4,5,6,7 |
刊名 | The Astrophysical Journal Letters
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出版日期 | 2021-05-01 |
卷号 | 913期号:1 |
关键词 | Interplanetary physics Solar radio emission |
ISSN号 | 2041-8205 |
DOI | 10.3847/2041-8213/abfb77 |
英文摘要 | Abstract The low frequency cutoffs flo and the observed plasma frequency fp of 176 type III radio bursts are investigated in this paper. These events are observed by the Parker Solar Probe when it is in the encounter phase from the first to the fifth orbit. The result shows that the distribution of cutoffs flo is widely spread between 200 kHz and 1.6 MHz. While the plasma frequency fp at the spacecraft is between 50 and 250 kHz, which is almost all smaller than flo. The result also shows that the maximum probability distribution of flo (~680 kHz) is remarkably higher than that observed by Ulysses and Wind (~100 kHz) in previous research. Three possible reasons, i.e., solar activity intensity, event electing criteria, and radiation attenuation effect, are also preliminarily discussed. |
语种 | 英语 |
WOS记录号 | IOP:2041-8205-913-1-ABFB77 |
出版者 | The American Astronomical Society |
源URL | [http://ir.bao.ac.cn/handle/114a11/58834] ![]() |
专题 | 中国科学院国家天文台 |
通讯作者 | Chen,Ling |
作者单位 | 1.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China 2.Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, People’s Republic of China clvslc214@pmo.ac.cn 3.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, People's Republic of China 4.Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, USA 5.Physics Department, University of California, Berkeley, CA 94720-7300, USA 6.The Blackett Laboratory, Imperial College London, London, SW7 2AZ, UK 7.School of Physics and Astronomy, Queen Mary University of London, London E1 4NS, UK |
推荐引用方式 GB/T 7714 | Ma,Bing,Chen,Ling,Wu,Dejin,et al. Statistics of Low Frequency Cutoffs for Type III Radio Bursts Observed by Parker Solar Probe during Its Encounters 1–5[J]. The Astrophysical Journal Letters,2021,913(1). |
APA | Ma,Bing,Chen,Ling,Wu,Dejin,&Bale,Stuart D..(2021).Statistics of Low Frequency Cutoffs for Type III Radio Bursts Observed by Parker Solar Probe during Its Encounters 1–5.The Astrophysical Journal Letters,913(1). |
MLA | Ma,Bing,et al."Statistics of Low Frequency Cutoffs for Type III Radio Bursts Observed by Parker Solar Probe during Its Encounters 1–5".The Astrophysical Journal Letters 913.1(2021). |
入库方式: OAI收割
来源:国家天文台
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