Curriculum Vitaes

Shin TORIUMI

  (鳥海 森)

Profile Information

Affiliation
Associate Professor, Institute of Space and Astronautical Science, Department of Solar System Science, Japan Aerospace Exploration Agency
Degree
Ph.D. (Science)(Mar, 2014, The University of Tokyo)

Contact information
toriumi.shinjaxa.jp
Researcher number
30738290
ORCID ID
 https://orcid.org/0000-0002-1276-2403
J-GLOBAL ID
201801010150385982
researchmap Member ID
B000334089

External link

Graduated from the School of Science, the University of Tokyo (PhD in Science, March 2014), Shin Toriumi has been working on the formation of sunspots and genesis of solar flares through both numerical simulations and observational data analysis. He is also interested in stellar activity phenomena. ADS Google Scholar ORCID

  • Magnetic flux emergence and sunspot formation: Sunspots are created through emergence of magnetic fields from the solar interior, which cannot be investigated by direct optical observations. Toriumi performed large-scale numerical simulations and revealed the physical properties of emerging magnetic fields such as a rising speed and magentic structure. He also developed a new method of probing subsurface magnetic fields using helioseismology and estimated the emergence speed, which was in accordance with the numerical result.
  • Sunspot jets and explosions: Sunspots harbor a variety of activity events like jets and explosions. He analyzed the observational data from Hinode and IRIS and numerical model of sunspots, revealing that the sunspots jets are caused by magnetic reconnection, driven by turbulent convection. → NAOJ press release
  • Flare-producing sunspots: Major solar flares tend to occur in complex-shaped sunspot groups. Toriumi analyzed a number of flare-producing sunspots and revealed their statistical properties. He also succeeded in the first-ever modling of spontaneous generation of flaring sunspots via realistic simulation of magnetic flux emergence. → HMI Nuggets Web release
  • Solar-Stellar connections: To see what starspots would look like, Toriumi surveyed sun-as-a-star light curves of sunspot transit events for a variety of wavelengths and explored the ways to characterize the magnetic and thermal circumstances of starspots.→ NASA press release He also revealed that ultra-hot atmospheres of the Sun and Sun-like stars are produced by the common heating mechanisms.→ American Univ press release
  • SOLAR-C: With the target launch in FY2028, Japan's next-generation solar-observing satellite SOLAR-C is now in Phase B. Toriumi is leading the development of science operation, data handling, ground segments, etc.
  • PR: He is involved in PR activities for the ISAS/JAXA, including the host for the live-streaming of the lunar landing of the Smart Lander for Investigating Moon (SLIM).→ YouTube Live


Major Papers

 64

Misc.

 39
  • Yuanyong Deng, Hui Tian, Jie Jiang, Shuhong Yang, Hao Li, Robert Cameron, Laurent Gizon, Louise Harra, Robert F. Wimmer-Schweingruber, Frederic Auchere, Xianyong Bai, Luis Bellot Rubio, Linjie Chen, Pengfei Chen, Lakshmi Pradeep Chitta, Jackie Davies, Fabio Favata, Li Feng, Xueshang Feng, Weiqun Gan, Don Hassler, Jiansen He, Junfeng Hou, Zhenyong Hou, Chunlan Jin, Wenya Li, Jiaben Lin, Dibyendu Nandi, Vaibhav Pan, Marco Romoli, Taro Sakao, Krishna Prasad Sayamanthula, Fang Shen, Yang Su, Shin Toriumi, Durgesh Tripathi, Linghua Wang, JingJing Wang, Lidong Xia, Ming Xiong, Yihua Yan, Liping Yang, Shangbin Yang, Mei Zhang, Guiping Zhou, Xiaoshuai Zhu, Jingxiu Wang, Chi Wang
    Taikong, (22) 1-33, May, 2025  
  • Shin Toriumi
    Proceedings of the IAU Symposium, 388, Sep, 2024  Peer-reviewedInvitedLead authorCorresponding author
  • Fuminori Tsuchiya, Go Murakami, Atsushi Yamazaki, Shingo Kameda, Tomoki Kimura, Ryoichi Koga, Kei Masunaga, Shotaro Sakai, Masahiro Ikoma, Akifumi Nakayama, Masami Ouchi, Masaomi Tanaka, Shin Toriumi, Masato Kagitani, Kazuo Yoshioka, Chihiro Tao, Hajime Kita, Hidenobu Yajima, Hideo Sagawa, Hiromu Nakagawa, Hitoshi Hamori, Jun Kimura, Keigo Enya, Kosuke Namekata, Manabu Yamada, Masaki Kuwabara, Naoki Terada, Naoya Ozaki, Norio Narita, Sae Aizawa, Seiko Takagi, Shinitiro Sakai, Shohei Aoki, Shoya Matsuda, Shuya Tan, Takahiro Sumi, Takanori Kodama, Takashi Moriya, Takatoshi Shibuya, Takehiko Satoh, Taro Kawano, Nozomu Tominaga, Toshifumi Shimizu, Yasumasa Kasaba, Yoichi Yatsu, Yoshiaki Ono, Yudai Suzuki, Yuichi Matsuda, Yuki Harada, Yuta Notsu
    Proceedings of the SPIE, 13093 130930I, Aug 21, 2024  
  • Xudong Sun, Aimee Norton, Shin Toriumi, Peter Schuck, Jie Zhang
    HMI Science Nuggets, 200, Jun 9, 2024  
  • 清水敏文, 加藤秀樹, 内山瑞穂, 備後博生, 鳥海森, 松崎恵一, 坂尾太郎, 山崎大輝, 三好航太, 田中寛人, 藤原正寛, 末松芳法, 原弘久, 勝川行雄, 久保雅仁, 成影典之, 石川遼子, 岡本丈典, 川畑佑典, 篠田一也, 光武正明, 浦口史寛, 都築俊宏, 小原直樹, 鄭祥子, 大場崇義, 今田晋亮, 増田智, 渡邉恭子, 永田伸一
    日本天文学会年会講演予稿集, 2024, 2024  
  • Shin Toriumi
    Monthly News on Astronomy from Nishi-Harima Astronomical Observatory, 401 3-5, Aug 15, 2023  Lead authorCorresponding author
  • Nour E. Raouafi, J. Todd Hoeksema, Jeffrey S. Newmark, Sarah Gibson, Thomas E. Berger, Lisa A. Upton, Angelos Vourlidas, Donald M. Hassler, James Kinnison, George C. Ho, Glenn M. Mason, Juliana T. Vievering, Nicholeen M. Viall, Adam Szabo, Marta Casti, Anthony W. Case, Susan T. Lepri, Marco Velli, Manolis K. Georgoulis, Sofiane Bourouaine, Vamsee K. Jagarlamudi, John M. Laming, James P. Mason, Louise Harra, Maria Madjarska, Lakshmi Pradeep Chitta, J. Sebastian Castellanos Duran, Andreas Korpi-Lagg, Samuel Badman, Iulia Chifu, David Lario, Simon Wing, Stuart Bale, Evangelos Paouris, Smitha Narayanamurthy, Jonas Sinjan, Pietro Bernasconi, Natalie Krivova, Laurent Gizon, Robert J. Leamon, Sanjay Gosain, Maria Kazachenko, Gordon Petrie, Valentin Martinez Pillet, Kiran Jain, Janet Luhmann, Luca Bertello, Shin Toriumi, Chen Jiang, Ivan Vasko, John W. Harvey, Thomas A. Schad, Immanuel C. Jebaraj, Philip Scherrer, Stefan Hofmeister, Sanjiv Tiwari, Haimin Wang, Markus Roth, Navdeep Panesar, Takashi Sekii, Norbert Magyar, Salvo L. Guglielmino, Susanna Parenti, Benoit Tremblay, Kostas Tziotziou, Giuliana de Toma, Bin Chen, Yukio Katsukawa, Bart De Pontieu, Xin Cheng, Mark Cheung, Alexander Kosovichev, Jie Jiang, Hannah Schunker, Yusuke Kawabata, Takayoshi Oba, Robert Cameron, Shibu K. Mathew, Jaime de la Cruz Rodriguez, Kanya Kusano, Manuela Temmer, Vincenzo Andretta, Wedemeyer Sven, Evangelia Samara, Stephan G. Heinemann, Alexander Warmuth, Shahin Jafarzadeh, Duncan H. Mackay, Andrzej Fludra, Luis Bellot Rubio, David Orozco Suárez, Thomas Y. Chen, Ioannis Kontogiannis, Stephanie Yardley, Astrid Veronig, Jayant Joshi, Daniele Spadaro, Masahito Kubo, Souvik Bose, Nazaret Bello González, Sami Solanki, Carsten Denker, Meetu Verma, Christian Vocks, Juan Manuel Borrero, Nathaniel H. Mathews, Shannon Cury, Clementina Sasso, Guillermo Stenborg, Getachew Tibebu, Karl Battams, Nicolas Wijsen, Alessandro Bruno, Hardi Peter, Mason Emily I., Caplan Ronald M., Juan Martinez-Sykora, Daniel Seaton, Vladimir Airapetian, Lan Jian, William T. Thompson, Leon Ofman, Samantha Wallace, Therese Kucera, Ravindra Desai, Ian Richardson, Joan Burkepile, Steven Cranmer, R. Du Toit Strauss, Mariarita Murabito, De Wijn Alfred, Hong Xie, Matthias Rempel, Shea Hess Webber, Katharine K. Reeves, Neal Hurlburt, Francesco Berrilli, Edward DeLuca, Ricky Egeland, Yuan-Kuen Ko, Nathaniel Dylan Kee, Sushant S. Mahajan, DeForest Craig, Brian E. Wood, Chaston Chris, Giuseppina Nigro, Shaheda Begum Shaik, Milan Gosic, Toshifumi Shimizu, Francesca Zuccarello, Nariaki Nitta, Theodosios Chatzistergos, Yuhong Fan, Jie Zhang, Andre Fehlmann, Erika Palmerio, Ryohtaroh T. Ishikawa, Sanja Danilovic, Moa Skan, Clara Froment, Carlos José Díaz Baso, Zhi-Chao Liang, Thierry Dudok de Wit, Krzysztof Barczynski, Craig Johnston, Etienne Pariat, Lina Hadid, Guillaume Aulanier, Allan Sacha Brun, Kouloumvakos Athanasios, Gianna Cauzzi, Pauline Dredger, Ryan French, Damian Christian, Mark Linton, Jack Ireland, Lucas Tarr, Antoine Strugarek, Vadim Uritsky, Marc DeRosa, Matthieu Kretzschmar, Rafael A. García, Mario J. P. F. G. Monteiro, Savita Mathur, Sylvain N. Breton, Rui F. Pinto, Juan Carlos Martinez Oliveros, Robert Loper, Frédéric Auchère, Tongjiang Wang, Nelson Reginald, Margarida S. Cunha, Luca Teriaca, Georgios Chintzoglou, Benjamin J. Lynch, Jon Linker, Paul Beck, Jackson Shannon, Benjamin Clare, Christopher Krupiarz, Ian D. Whiting, Adam Byerly, Stewart Bushman, David Carrelli, Seth Kijewski, Jacob Englander, Adam Mizes, Jamie Porter, Michael O’Neill, Debarati Chattopadhyay, Joshua Albers, Mark Rast, Ilaria Ermolli, Nigel Tzeng, James F. Hudson, Alessandra Giunta, Éric Buchlin, Véronique Bommier, Nicole Duncan, Miho Janvier, Hanna Strecker, Azaymi Siu, Barbara Perri, Milan Maksimovic, Nicole Vilmer, Sergio Toledo-Redondo, Christoph Kuckein, Tommaso Alberti, Patrick Antolin, Regina Aznar Cuadrado, David Berghmans, Schmieder Brigitte, Radoslav Bucik, Daniele Calchetti, Amir Caspi, Christina Cohen, Thierry Corbard, Hebe Cremades, Alan Cummings, Suman Dhakal, Laurent Dolla, Marie Dominique, Gordon Emslie, Fabiana Ferrente, Adam J. Finley, Lyndsay Fletcher, Federico Fraschetti, Ricardo Gafeira, Samuel Gissot, Dinesha Hegde, Qiang Hu, Maria Elena Innocenti, Meng Jin, Kristopher Klein, Pankaj Kumar, Daniela Lacatus, Paulett Liewer, Jasmina Magdalenic, Sudip Mandal, Cristina H. Mandrini, Marilena Mierla, Mari Paz Miralles, Ron Moore, Jonathan Neville, Tatiana Niembro, Eleni Nikou, Alexander Nindos, Athanasios Papaioannou, S. Paul Rajaguru, Victor Reville, Pierre Rochus, Luciano Rodriguez, Marco Romoli, Sergei Shestov, Chen Shi, Luca Sorriso-Valvo, O. C. St. Cyr, Alphohse Sterling, Michael L. Stevens, Roberto Susino, Marc Swisdak, Barbara J. Thompson, Senthamizh Pavai Valliappan, Francis Verbeeck, Volker Bothmer, Sun Xudong, Andrei Zhukov, Thanassis Katsiyannis, Christopher Owen, Nishu Karna, Jan Janssens, Elena Khomenko, Dale Gary, Riddhi Bandyopadhyay, Rohit Chhiber, Anna Tenerani, Alexis Rouillard, Spiros Patsourakos, Anastasios Anastasiadis, Karine Bocchialini, Kostas Moraitis, Yeimy Rivera, James Drake, Frédéric Baudin, Benjamin Chandran, Maher Dayeh, Kevin Reardon, Iver Cairns, Nina Bizien, David Wexler, Shah Bahauddin, Javier Rodriguez-Pacheco, Sijie Yu, Jeongwoo Lee, Costis Gontikakis, Alexandros Koukras, Olivier Le Contel, Oreste Pezzi, Christian Kintziger, Patrick Boumier, Georgios Balasis, Mausumi Dikpati, W. Dean Pesnell, Yi Chai, Dibyendu Nandy, Arge Charles, Claudio Corti, Lulu Zhao, William H. Matthaeus, Chris R. Gilly, Robert E. Erlandson, Moncef Derouich, Lingling Zhao, Stefaan Poedts, Chen Shi, Luis Vieira, Laxman Adhikari, Juan Camilo Buitrago-Casas, Jia Huang, Christian Moestl, Mingzhe Liu, Jacob Oloketuyi, Bin Zhuang, Tommaso Alberti, Laura Rodríguez-García, Jean Carlos Perez, Zigong Xu, Jason Kooi, Lloyd D. Woodham, Durgesh Tripathi, Peter Young, Cynthia López-Portela, Manuel Enrique Cuesta, Lynn Wilson
    Bulletin of the American Astronomical Society, 55(3) 333, Jul 31, 2023  
    https://ui.adsabs.harvard.edu/abs/2023BAAS...55c.333R/abstract
  • Louise Harra, Lyndsay Fletcher, Laurent Gizon, Sami Solanki, Marco Romoli, Louise Harra, Kanya Kusano, Hideyuki Hotta, Yukio Katsukawa, Richard Harrison, Chris Owen, Jackie Davies, Shinsuke Imada, Shin Toriumi, Kostas Tziotziou, David Orozco-Suarez, Daniele Verscharen, Athanasios Papaioannou, Ryan Milligan, Georgia Tsiropoula, Hiroshisa Hara, Toshifumi Shimizu, Säm Krucker, Duncan Mackay, David Berghmans, Marie Dominique, Laurent Dolla, Sergei Shestov, Ioannis Daglis, George Balasis, Alexander Nindos, Kostis Moraitis, Costis Gontikakis, Sarah Matthews, Ineke De Moortel, Xenophon Moussas, Jose Carlos del Toro Iniesta, Mihalis Mathioudakis, Javier Rodriguez-Pacheco, Daniele Spadaro, Peter Gallagher, Duncan Mackay, Vincenzo Andretta, Andrew Fazakerley, Frederic Auchère, Silvano Fineschi, Daniele Telloni, Robert Wimmer-Schweingruber, Lucia Kleint, Hardi Peter, Natalie Krivova, Lakshmi Pradeeep Chitta, Krzysztof Barczynski, Wolfgang Finsterle, Alexis Rouillard, James McLaughlin, Nour E. Raouafi, Daniel Verscharen, Silvia Dalla, Anastasios Anastasiadis
    Bulletin of the American Astronomical Society, 55(3) 160, Jul 31, 2023  
    https://ui.adsabs.harvard.edu/abs/2023BAAS...55c.160H/abstract
  • 鳥海森, 清水敏文, 松崎恵一, 加藤秀樹, 内山瑞穂, 備後博生, 山崎大輝, 原弘久, 石川遼子, 浦口史寛, 大場崇義, 岡本丈典, 勝川行雄, 川畑佑典, 久保雅仁, 篠田一也, 下条圭美, 都築俊宏, 鄭祥子, 成影典之, 光武正明, 飯田佑輔, 今田晋亮, 増田智, 草野完也, 永田伸一, 横山央明, 浅井歩, 渡邉恭子
    日本天文学会年会講演予稿集, 2023, 2023  
  • 清水敏文, 今田晋亮, 原弘久, 末松芳法, 都築俊宏, 勝川行雄, 久保雅仁, 石川遼子, 渡邊鉄哉, 川手朋子, 川手朋子, 鳥海森, 鄭祥子, 松崎恵一, 横山央明, 一本潔, 永田伸一, 浅井歩, 草野完也, 渡邉恭子, 飯田佑輔
    日本天文学会年会講演予稿集, 2021, 2021  
  • 鳥海 森
    ISASニュース, 478 2-4, Jan, 2021  
  • Toshifumi Shimizu, Shinsuke Imada, Tomoko Kawate, Yoshinori Suematsu, Hirohisa Hara, Toshihiro Tsuzuki, Yukio Katsukawa, Masahito Kubo, Ryoko Ishikawa, Tetsuya Watanabe, Shin Toriumi, Kiyoshi Ichimoto, Shin'ichi Nagata, Takahiro Hasegawa, Takaaki Yokoyama, Kyoko Watanabe, Katsuhiko Tsuno, Clarence M. Korendyke, Harry P. Warren, Bart De Pontieu, Paul Boerner, Sami K. Solanki, Luca Teriaca, Udo Schühle, Sarah Matthews, David Long, William Thomas, Barry Hancock, Hamish Reid, Andrzej Fludra, Frederic Auchere, Vincenzo Andretta, Giampiero Naletto, Luca Poletto, Louise Harra
    Proceedings of the SPIE, 11444, Dec 13, 2020  
  • 今田晋亮, 清水敏文, 川手朋子, 鳥海森, 原弘久, 渡邊鉄哉, 末松芳法, 勝川行雄, 久保雅仁, 渡邉恭子, 一本潔, 永田伸一, 浅井歩, 阿南徹, 横山央明, 草野完也, LONG David, WARREN Harry P.
    日本天文学会年会講演予稿集, 2020, 2020  
  • 今田晋亮, 清水敏文, 川手朋子, 鳥海森, 末松芳法, 原弘久, 渡邊鉄哉, 勝川行雄, 久保雅仁, 渡邉恭子, 一本潔, 永田伸一, 浅井歩, 阿南徹, 横山央明, 草野完也, LONG David, WARREN Harry P.
    日本天文学会年会講演予稿集, 2020, 2020  
  • S. Toriumi
    HMI Science Nuggets, 134, Dec 17, 2019  Lead authorCorresponding author
  • S. Toriumi
    PSTEP Science Nuggets, 25, Dec 4, 2019  Lead authorCorresponding author
  • T. Shimizu, S. Imada, T. Kawate, K. Ichimoto, Y. Suematsu, H. Hara, Y. Katsukawa, M. Kubo, S. Toriumi, T. Watanabe, T. Yokoyama, C.M. Korendyke, H.P. Warren, T. Tarbell, B. De Pontieu, L. Teriaca, U.H. Schühle, S. Solanki, L.K. Harra, S. Matthews, A. Fludra, F. Auchère, V. Andretta, G. Naletto, A. Zhukov
    Proceedings of the SPIE, 1111807, Sep 9, 2019  
  • 鳥海森
    天文月報, Aug, 2019  InvitedLead authorCorresponding author
  • 鳥海森
    日本物理学会講演概要集, 73.1 759-760, May 13, 2019  Invited
    会議情報 主催: 一般社団法人日本物理学会 会議名: 2018年度日本物理学会第73回年次大会 開催日: 2018/03/22 - 2018/03/25
  • 清水敏文, 今田晋亮, 川手朋子, 鳥海森, 末松芳法, 原弘久, 勝川行雄, 久保雅仁, 鹿野良平, 石川遼子, 渡邊鉄哉, 横山央明, 一本潔, 浅井歩, 永田伸一, 渡邉恭子, 草野完也, KORENDYKE C., WARREN H., DE PONTIEU B., SOLANKI S., L.Teriaca, AUCHERE F., MATTHEWS S., HARRA L., FLUDRA A., VINCENZO A.
    日本天文学会年会講演予稿集, 2019, 2019  
  • 今田晋亮, 清水敏文, 川手朋子, 一本潔, 原弘久, 渡邊鉄哉, 末松芳法, 勝川行雄, 久保雅仁, 鳥海森, 渡邉恭子, 永田伸一, 草野完也, 横山央明, LONG David, WARREN Harry P.
    プラズマ・核融合学会年会(Web), 36th, 2019  
  • 清水敏文, 今田晋亮, 川手朋子, NODA C. Quitero, 一本潔, 一本潔, 原弘久, 渡邊鉄哉, 末松芳法, 勝川行雄, 久保雅仁, 鳥海森, LEE K-S., 横山央明, 渡邉恭子, 永田伸一, 阿南徹, 草野完也, KORENDYKE C., WARREN H., TARBELL T., SOLANKI S., TERIACA L., AUCHERE F., HARRA L., VINCENZO A., ZHUKOV A.
    日本天文学会年会講演予稿集, 2019, 2019  
  • N. Nishizuka, H. Hotta, S. Toriumi
    Journal of Plasma and Fusion Research, 94(2) 51-57, Feb, 2018  
  • 今田晋亮, 清水敏文, 川手朋子, QUITERO NODA Carlos, 一本潔, 一本潔, 原弘久, 渡邊鉄哉, 末松芳法, 勝川行雄, 久保雅仁, 鳥海森, LEE Kyoung-Sun, 渡邉恭子, 永田伸一, 阿南徹, 草野完也, 横山央明, LONG David, WARREN Harry P.
    日本天文学会年会講演予稿集, 2018, 2018  
  • 清水敏文, 今田晋亮, 川手朋子, QUITERO NODA C., 一本潔, 一本潔, 原弘久, 渡邊鉄哉, 末松芳法, 勝川行雄, 久保雅仁, 鳥海森, LEE K-S., 渡邉恭子, 永田伸一, 阿南徹, 草野完也, 横山央明, KORENDYKE C., WARREN H., TARBELL T., SOLANKI S., TERIACA L., AUCHERE F., HARRA L., VINCENZO A., ZHUKOV A.
    日本天文学会年会講演予稿集, 2018, 2018  
  • 川手朋子, 清水敏文, 今田晋亮, QUITERO NODA Carlos, 一本潔, 一本潔, 原弘久, 渡邊鉄哉, 末松芳法, 勝川行雄, 久保雅仁, 鳥海森, LEE Kyoung-Sun, 渡邉恭子, 永田伸一, 阿南徹, 草野完也, 横山央明, KORENDYKE Clarence, TARBELL Theodore D., TERIACA Luca, AUCHERE Frederic
    日本天文学会年会講演予稿集, 2018, 2018  
  • H. Wang, V. Yurchyshyn, C. Liu, K. Ahn, S. Toriumi, W. Cao
    Research Notes of the American Astronomical Society, 2(1) 8, Jan, 2018  
    https://ui.adsabs.harvard.edu/abs/2018RNAAS...2....8W/abstract
  • S. Toriumi
    PSTEP Science Nuggets, 4, Jan 11, 2017  Lead author
  • 鳥海森
    パリティ, 32(1) 63, Jan, 2017  Invited
  • S. Toriumi, C.J. Schrijver, L.K. Harra, H. Hudson, K. Nagashima
    HMI Science Nuggets, 65, Dec 17, 2016  Lead authorCorresponding author
  • S. Toriumi
    The Astronomical Herald, 107(11) 639-646, Nov, 2014  InvitedLead authorCorresponding author
  • S. Toriumi, T. Yokoyama
    JPS Conference Proceedings, 1 015107, 2014  Lead authorCorresponding author
  • Kusano Kanya, Bamba Yumi, Yamamoto Tetsuya, Iida Yusuke, Toriumi Shin, Asai Ayumi
    Meeting abstracts of the Physical Society of Japan, 68(1) 263-263, Mar 26, 2013  
  • Shin Toriumi, Takaaki Yokoyama
    HINODE-3: THE 3RD HINODE SCIENCE MEETING, 454 259-262, 2012  Lead authorCorresponding author
  • Shin Toriumi, Takaaki Yokoyama
    FIFTH HINODE SCIENCE MEETING: EXPLORING THE ACTIVE SUN, 456 33-38, 2012  Lead authorCorresponding author
  • Toriumi Shin, Yokoyama Takaaki
    2010 212-212, 2010  
    Solar active regions including sunspots are thought to be the consequence of the emergence of a magnetic flux tube from the bottom of the convection zone (at -200,000km depth). Here we perform the two-dimensional magnetohydrodynamic (MHD) simulations to show the emergence of the flux tube from a -20,000km depth to the atmosphere through the solar surface. The simulations are done for the axial and the cross-sectional evolutions of the flux tube. As a result, both fluxes show the deceleration halfway to the surface and extend laterally near the surface. From the parameter surveys, we obtain the conditions for actual active regions: the field strength 10^4G, the total magnetic flux 10^<21>-10^<22>Mx, and the twist 5.0×10^<-4>km^<-1> at -20,000km depth.
  • Toriumi Shin, Yokoyama Takaaki
    2009 104-104, 2009  
    Emerging magnetic flux tubes in the solar convection zone are thought to be responsible for formation of active regions. We performed two-dimensional MHD simulations of the flux emergence from the solar interior to the atmosphere. The flux tube is initially placed deep down at the convection zone (-20,000km) and perturbed to generate Parker instability. The tube rises through the convection zone, but stops below the surface bacause of the strong pressure gradient. After being unstable to the Parker instability, the tube emerges to the atmosphere again. We show this 'two-step emergence' model and have some discussions on the parameter survey.

Books and Other Publications

 3

Major Presentations

 367

Teaching Experience

 5

Major Research Projects

 11

Academic Activities

 17

Social Activities

 30

Media Coverage

 14