On the Origin of Coronal Mass Ejection surveyed by Observations of Coronal Disturbances

• Project/Area Number: 15K17772
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Space and upper atmospheric physics
• Research Institution: Kyoto University
• Principal Investigator: Asai Ayumi 京都大学, 理学研究科, 准教授 (50390620)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
• Keywords: 太陽物理学 / 超高層物理学 / 宇宙天気 / 宇宙物理 / 超高層大気物理学

Outline of Final Research Achievements

On the solar surface, various active phenomena, such as solar flares, are constantly occurring. In particular, various shocks propagating in the corona are phenomena related to MHD shock waves and are extremely important for research on "space weather" as an origin of corona mass emissions and as a generator of high energy particles. I surveyed the relationship between the 3-dimensional structure of the corona shock waves propagating through the corona and the corona mass emission through the various observational data.

Research Products

• [Journal Article] Observational study on the fine structure and dynamics of a solar jet. II. Energy release process revealed by spectral analysis (2018)
  • Author(s): Sakaue Takahito、Tei Akiko、Asai Ayumi、Ueno Satoru、Ichimoto Kiyoshi、Shibata Kazunari
  • Journal Title: Publications of the Astronomical Society of Japan Volume: - Issue: 6
  • DOI: 10.1093/pasj/psx133
  • Peer Reviewed
• [Journal Article] Blue wing enhancement of the chromospheric Mg II h and k lines in a solar flare (2018)
  • Author(s): Akiko Tei, Takahito Sakaue, Takenori J. Okamoto, Tomoko Kawate, Petr Heinzel, Satoru Ueno, Ayumi Asai, Kiyoshi Ichimoto, Kazunari Shibata
  • Journal Title: Publications of the Astronomical Society of Japan Volume: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Variation of the Solar Microwave Spectrum in the Last Half Century (2017)
  • Author(s): Shimojo Masumi、Iwai Kazumasa、Asai Ayumi、Nozawa Satoshi、Minamidani Tetsuhiro、Saito Masao
  • Journal Title: The Astrophysical Journal Volume: 848 Issue: 1 Pages: 62-62
  • DOI: 10.3847/1538-4357/aa8c75
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Observational study on the fine structure and dynamics of a solar jet. I. Energy build-up process around a satellite spot (2017)
  • Author(s): Sakaue Takahito、Tei Akiko、Asai Ayumi、Ueno Satoru、Ichimoto Kiyoshi、Shibata Kazunari
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Issue: 5
  • DOI: 10.1093/pasj/psx071
  • Peer Reviewed
• [Journal Article] Statistical Studies of Solar White-light Flares and Comparisons with Superflares on Solar-type Stars (2017)
  • Author(s): Namekata, K., Sakaue, T., Watanabe, K., Asai, A., Maehara, H., Notsu, Y., Notsu, S., Honda, S., Ishii, T. T., Ikuta, K., Nogami, D., Shibata, K.
  • Journal Title: The Astrophysical Journal Volume: 851 Issue: 2 Pages: 91-91
  • DOI: 10.3847/1538-4357/aa9b34
  • Peer Reviewed
• [Journal Article] “Dandelion” Filament Eruption and Coronal Waves Associated with a Solar Flare on 2011 February 16 (2017)
  • Author(s): Cabezas, Denis P.; Martinez, Lurdes M.; Buleje, Yovanny J.; Ishitsuka, Mutsumi; Ishitsuka, Jose K.; Morita, Satoshi; Asai, Ayumi; UeNo, Satoru; Ishii, Takako T.; Kitai, Reizaburo; Takasao, Shinsuke; Yoshinaga, Yusuke; Otsuji, Kenichi; Shibata, Kazunari
  • Journal Title: The Astrophysical Journal Volume: 836 Issue: 1 Pages: 33-45
  • DOI: 10.3847/1538-4357/836/1/33
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Validation of a scaling law for the coronal magnetic field strength and loop length of solar and stellar flares (2017)
  • Author(s): 1.Kosuke Namekata, Takahito Sakaue, Kyoko Watanabe, Ayumi Asai, Kazunari Shibata
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Issue: 1 Pages: 7-7
  • DOI: 10.1093/pasj/psw111
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Observational Evidence of Particle Acceleration Associated with Plasmoid Motions (2016)
  • Author(s): Takasao, Shinsuke; Asai, Ayumi; Isobe, Hiroaki; Shibata, Kazunari
  • Journal Title: The Astrophysical Journal Volume: 828 Issue: 2 Pages: 103-113
  • DOI: 10.3847/0004-637x/828/2/103
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Temporal evolution and spatial distribution of white-light are kernels in a solar flare (2016)
  • Author(s): Kawate, Tomoko, Ishii, Takako T., Nakatani, Yoshikazu, Ichimoto, Kiyoshi, Asai, Ayumi, Morita, Satoshi, Masuda, Satoshi
  • Journal Title: The Astrophysical Journal Volume: 833 Issue: 1 Pages: 50-57
  • DOI: 10.3847/1538-4357/833/1/50
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] IAU commission 10 "Solar Activity": Legacy report and triennial report for 2012-2015 (2016)
  • Author(s): Schrijver, C. J., Fletcher, L., van Driel-Gesztelyi, L., Asai, A., Cally, P. S., Charbonneau, P., Gibson, S. E., Gomez, D., Hasan, S. S., Veronig, A. M., Yan, Y.
  • Journal Title: Transactions of the IAU, by the International Astronomical Union Volume: *
• [Journal Article] Internal structure of a coronal mass ejection revealed by Akatsuki radio occultation observations (2015)
  • Author(s): Ando, H.; Shiota, D.; Imamura, T.; Tokumaru, M.; Asai, A.; Isobe, H.; Päzold, M.; Häusler, B.; Nakamura, M.
  • Journal Title: Journal of Geophysical Research Volume: 120 Pages: 5318-5328
  • Peer Reviewed
• [Presentation] 太陽紫外線変動研究の現状・課題・展望＋議論 (2018)
  • Author(s): 浅井歩
  • Organizer: PSTEP・ISEE研究集会・第2回「太陽地球圏環境予測のためのモデル研究の展望」
• [Presentation] 飛騨天文台SMART/SDDI で観測された浮上磁場領域とアーチフィラメントシステム (2018)
  • Author(s): 町田亜希, 浅井歩, 大辻賢一
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] Dynamics Processes of the Moreton Wave on 2014 March 29 (2018)
  • Author(s): Denis P. Cabezas, Ayumi Asai, Kiyoshi Ichimoto, Satoru UeNo, Mutsumi Ishitsuka, Kazunari Shibata
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] Hα 、Hβ 、Ca II 8542Åの同時観測によるプロミネンスの温度測 (2017)
  • Author(s): 岡田翔陽，町田亜希，徳田怜実, 一本潔, 浅井歩，上野悟，柴田一成
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] 温度と視線速度の位相差から探る、プロミネンスの中の波動の性質 (2017)
  • Author(s): 町田亜希, 岡田翔陽, 徳田怜実, 一本潔, 浅井歩, 上野悟, 柴田一成
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] 噴出するプロミネンスに見られた波動現象 (2017)
  • Author(s): 花岡庸一郎、浅井歩
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] 彩層分光観測で探る太陽フレアのエネルギー解放過程とダイナミクス (2016)
  • Author(s): 鄭祥子, 坂上峻仁, 浅井歩, 上野悟, 一本潔, 柴田一成, 川手朋子, 岡本丈 典
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛県松山市
  • Year and Date: 2016-09-14
• [Presentation] The relationship between the spatio-time structure of flare two-ribbon and MHD Kelvin-Helmholtz instabilities in the flaring corona (2016)
  • Author(s): Takahashi, T., Shibata, K., Asai, A.
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛県松山市
  • Year and Date: 2016-09-14
• [Presentation] 飛騨天文台SMART 望遠鏡を用いた高速成分を伴うフィラメント活動現象の発生頻 度解析 (2016)
  • Author(s): 廣瀬公美, 一本潔, 石井貴子, 浅井歩, 大辻賢一, 北井礼三郎, 京都大学SMARTチーム
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛県松山市
  • Year and Date: 2016-09-14
• [Presentation] Coronal MHD shock-prominence interaction (2016)
  • Author(s): Takuya Takahashi, Kazunari Shibata, Ayumi Asai
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛県松山市
  • Year and Date: 2016-09-14
• [Presentation] 太陽ジェットの二段階加速の観測とその物理機構についての考察 (2016)
  • Author(s): 坂上峻仁, 鄭祥子, 浅井歩, 上野悟, 一本潔, 柴田一成
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛県松山市
  • Year and Date: 2016-09-14
• [Presentation] 太陽の白色光フレアの統計的研究と太陽型星スーパーフレアとの比較 (2016)
  • Author(s): 行方宏介, 坂上峻仁, 野津湧太, 渡邉恭子, 前原裕之, 浅井歩, 柴田 一成
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛県松山市
  • Year and Date: 2016-09-14
• [Presentation] Long-Term Solar Ultraviolet Radiation Estimated from Solar Images (2016)
  • Author(s): Ayumi Asai
  • Organizer: Asia Oceania Geosciences Society (AOGS) 13th Annual Meeting
  • Place of Presentation: 中国、北京
  • Year and Date: 2016-07-31
  • Int'l Joint Research / Invited
• [Presentation] Solar Ultraviolet Radiation estimated from Solar Images (2016)
  • Author(s): Asai, A., Isobe, H., UeNo, S., Shinbori, A., Kitai, R., Shiota, D., Morita, S.
  • Organizer: International Symposium PSTEP-1: Toward the Solar-Terrestrial Environment Prediction as Science and Social Infrastructure
  • Place of Presentation: 愛知県
  • Year and Date: 2016-01-13
  • Int'l Joint Research
• [Presentation] 飛騨天文台SMART望遠鏡を用いたフィラメント消失についての調査 (2015)
  • Author(s): 廣瀬公美，一本潔，浅井歩，大辻賢一，北井礼三郎$, 京都大学SMARTチーム
  • Organizer: 日本天文学会2015年秋季年会
  • Place of Presentation: 兵庫県
  • Year and Date: 2015-09-10
• [Presentation] コロナ中の衝撃波に伴うプロミネンス振動の磁気流体シミュレーションII (2015)
  • Author(s): 西田圭佑, 浅井歩, 柴田一成
  • Organizer: 日本天文学会2015年秋季年会
  • Place of Presentation: 兵庫県
  • Year and Date: 2015-09-10
• [Presentation] 磁場がサージを加速するメカニズムについての観測的検証 (2015)
  • Author(s): 坂上峻仁, 鄭祥子, 浅井歩, 上野悟, 一本潔, 柴田一成
  • Organizer: 日本天文学会2015年秋季年会
  • Place of Presentation: 兵庫県
  • Year and Date: 2015-09-10
• [Presentation] 彩層分光観測から迫る太陽フレアのエネルギー解放過程 (2015)
  • Author(s): 鄭祥子，坂上峻仁，浅井歩，上野悟，一本潔，柴田一成，川手朋子, 岡本丈典
  • Organizer: 日本天文学会2015年秋季年会
  • Place of Presentation: 兵庫県
  • Year and Date: 2015-09-10
• [Presentation] A Real Source of a Stealth CME – Energetics of a Filament Eruption and Giant Arcade Formation (2015)
  • Author(s): Asai, A., Ishii, T. T., Otsuji, K., Ichimoto, K., Shibata, K.
  • Organizer: XXIX International Astronomical Union (IAU) General Assembly
  • Place of Presentation: ホノルル、ハワイ、米国
  • Year and Date: 2015-08-03
  • Int'l Joint Research
• [Presentation] Energy Release Mechanisms of Solar Flares studied by Microwave Emission (2015)
  • Author(s): Asai, A.
  • Organizer: The 26th General Assembly of the International Union of Geodesy and Geophysics (IUGG)
  • Place of Presentation: プラハ、チェコ
  • Year and Date: 2015-06-22
  • Int'l Joint Research / Invited