Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL078293 |
Giant Pulsations Excited by a Steep Earthward Gradient of Proton Phase Space Density: Arase Observation | |
Yamamoto, Kazuhiro1; Nose, Masahito1; Kasahara, Satoshi2; Yokota, Shoichiro3; Keika, Kunihiro2; Matsuoka, Ayako4; Teramoto, Mariko5; Takahashi, Kazue6; Oimatsu, Satoshi1; Nomura, Reiko4; Vellante, Massimo7; Heilig, Balazs8; Fujimoto, Akiko9; Tanaka, Yoshimasa10; Shinohara, Manabu11; Shinohara, Iku4; Miyoshi, Yoshizumi5 | |
2018-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:14页码:6773-6781 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; USA; Italy; Hungary |
英文摘要 | We present observational evidence of drift resonance between westward propagating odd mode standing ultralow frequency waves and energetic protons. Compressional similar to 13 mHz (Pc4 band) waves and proton flux oscillations at >50 keV were detected at similar to 03 hr magnetic local time by the Arase satellite on 15 April 2017. The azimuthal wave number (m number) is estimated to be similar to-50 from ground observations, while the theory of drift resonance gives m similar to-49 for odd mode waves and similar to 110-keV protons, providing evidence that the drift resonance indeed took place in this event. We also found a steep earthward gradient of proton phase space density, which can quantitatively explain the wave excitation. The observed waves show typical features of giant pulsations (Pgs), regarding local time, m number, and flux oscillations. This study, therefore, has great implications to the field line mode structure and excitation mechanism of Pgs. |
英文关键词 | Arase giant pulsation drift resonance ULF inner magnetosphere ring current |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442582100003 |
WOS关键词 | DRIFT-BOUNCE RESONANCE ; ALLEN PROBES OBSERVATIONS ; TRAPPED-PARTICLES ; ALFVEN WAVES ; MAGNETOSPHERE ; GENERATION ; SATELLITE ; MECHANISM ; NIGHTSIDE ; FIELD |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28273 |
专题 | 气候变化 |
作者单位 | 1.Kyoto Univ, Grad Sch Sci, Kyoto, Japan; 2.Univ Tokyo, Tokyo, Japan; 3.Osaka Univ, Osaka, Japan; 4.Japan Aerosp Explorat Agcy, Tokyo, Japan; 5.Nagoya Univ, Inst Space Earth Environm Res, Nagoya, Aichi, Japan; 6.Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA; 7.Univ Aquila, Dept Phys & Chem Sci, Laquila, Italy; 8.Min & Geol Survey Hungary, Budapest, Hungary; 9.Kyushu Univ, Int Ctr Space Weather Sci & Educ, Fukuoka, Fukuoka, Japan; 10.Natl Inst Polar Res, Tachikawa, Tokyo, Japan; 11.Kagoshima Coll, Natl Inst Technol, Kagoshima, Japan |
推荐引用方式 GB/T 7714 | Yamamoto, Kazuhiro,Nose, Masahito,Kasahara, Satoshi,et al. Giant Pulsations Excited by a Steep Earthward Gradient of Proton Phase Space Density: Arase Observation[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(14):6773-6781. |
APA | Yamamoto, Kazuhiro.,Nose, Masahito.,Kasahara, Satoshi.,Yokota, Shoichiro.,Keika, Kunihiro.,...&Miyoshi, Yoshizumi.(2018).Giant Pulsations Excited by a Steep Earthward Gradient of Proton Phase Space Density: Arase Observation.GEOPHYSICAL RESEARCH LETTERS,45(14),6773-6781. |
MLA | Yamamoto, Kazuhiro,et al."Giant Pulsations Excited by a Steep Earthward Gradient of Proton Phase Space Density: Arase Observation".GEOPHYSICAL RESEARCH LETTERS 45.14(2018):6773-6781. |
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