TORIUMI Shin

Research Interests

"Solar Flux Emergence and the Formation of Active Regions"
On the solar surface we can see active regions, which are composed of sunspots and many active phenomena.
The active regions are thought to be the consequence of flux emergence, i.e., magnetic fluxes from deep convection zone.
I'm trying to investigate the physics of flux emergence by numerical simulations using supercomputers.

more...

About me

Name: TORIUMI Shin

Affiliation: Department of Earth and Planetary Science, University of Tokyo

Grade: 2nd grade in PhD. course, JSPS Research Fellow (DC1)

Major: Solar physics

Supervisor: Associate Prof. T. Yokoyama

Nationality: Japanese

Mailing Address: Department of Earth and Planetary Science, School of Science,
University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-0033 Japan

E-Mail Address:

Tel: +81-3-5841-4566

Fax: +81-3-5841-8321

Curriculum Vitae (PDF)

Publications

2010

Two-step Emergence of the Magnetic Flux Sheet from the Solar Convection Zone
S. Toriumi and T. Yokoyama 2010, ApJ., Vol. 714, No. 1, pp.505-516
ADS ApJ

2011

Dependence of the Magnetic Energy of Solar Active Regions on the Twist Intensity of the Initial Flux Tubes
S. Toriumi, T. Miyagoshi, T. Yokoyama, H. Isobe, and K. Shibata 2011, PASJ, Vol. 63, No. 2, pp.407-415
ADS PASJ

Numerical Experiments on the Two-step Emergence of Twisted Magnetic Flux Tubes in the Sun
S. Toriumi and T. Yokoyama 2011, ApJ, Vol.735, No. 2, p.126
ADS ApJ

2012

Large-scale 3D MHD simulation on the solar flux emergence and the small-scale dynamic features in an active region
S. Toriumi and T. Yokoyama 2012, A&A, vol. 539, p. A22
ADS A&A

Detection of the Horizontal Divergent Flow prior to the Solar Flux Emergence
S. Toriumi, K. Hayashi, and T. Yokoyama 2012, ApJ, in press
ADS

Presentations

2009

'Two-step Flux Emergence' from the Solar Convection Zone
S. Toriumi and T. Yokoyama
talk (9+3), Astronomical Society of Japan Autumnal Meeting 2009, Yamaguchi University (Sep. 15)

Two-step emergence of the magnetic flux sheet from the solar convection zone
S. Toriumi and T. Yokoyama
poster, Flux Emergence Workshop 2009, Tenerife, Spain (Nov.)

Numerical experiments on the two-step emergence of solar magnetic fields from the convective layer
S. Toriumi and T. Yokoyama
poster, Hinode-3: The 3rd Hinode Science Meeting, Tokyo (Dec.)

2010

Two-step Flux Emergence from the Solar Convection Zone and its Physics
S. Toriumi and T. Yokoyama
talk (9+3), Astronomical Society of Japan Spring Meeting 2010, Hiroshima University (Mar.)

Numerical Experiments on the Two-step Flux Emergence of the Sun
S. Toriumi and T. Yokoyama
talk, JpGU Meeting 2010, Makuhari Messe (Mar.)

Flux Tube's Emergence from -20,000 km of the Solar Convection Zone: 2D Cross-sectional Calculation
S. Toriumi and T. Yokoyama
talk (9+3), Astronomical Society of Japan Autumnal Meeting 2010, Kanazawa University (Sep.)

Dependence of the Magnetic Energy of the Emerging Flux on the Tube's Twist
S. Toriumi, T. Miyagoshi, T. Yokoyama, H. Isobe, and K. Shibata
poster, Astronomical Society of Japan Autumnal Meeting 2010, Kanazawa University (Sep.)

2011

Three-dimensional MHD Simulation on the Flux Emergence from -20,000 km of the Solar Convection Zone
S. Toriumi and T. Yokoyama
Astronomical Society of Japan Spring Meeting 2011 (Mar.)

2D and 3D MHD Simulations on the Solar Flux Emergence from -20,000 km: Large-scale Dynamics and Small-scale Observational Features
S. Toriumi and T. Yokoyama
talk, Flux Emergence Workshop 2011, UC Berkeley (Aug.)

3D MHD Numerical Simulation on the Solar Flux Emergence and the Formation of the Active Region
S. Toriumi and T. Yokoyama
talk, Astronomical Society of Japan Autumnal Meeting 2011, Kagoshima University (Sep.)

Numerical Simulation and the SOT Magnetogram Analysis on the Small-scale Magnetic Elements in the Solar Emerging Flux Region
S. Toriumi and T. Yokoyama
talk, Hinode-5: Fifth Hinode Science Meeting, Boston (Oct.)