Yosuke MATSUMOTO Associate Professor

Yosuke MATSUMOTO
Associate Professor

Researchmap

• Chiba University Institute for Advanced Academic Research / International Center for Hadron Astrophysics

• Keywords

  Particle acceleration, Cosmic rays, Shock waves, Collisionless plasma, Turbulence, High-performance computing

• Professional Memberships

  Society of Geomagnetism and Earth, Planetary and Space Sciences, The Astronomical Society of Japan, Japan Geoscience Union, American Geophysical Union

Research Theme

Clarification of High Energy Cosmic Ray Acceleration Mechanism

Abstract

Cosmic rays, traveling at almost the speed of light, are ubiquitous in the universe.

More than 100 years after their discovery, their origin remains one of the greatest mysteries in astrophysics.

We focus on the shock wave and magnetic-field energy release that accompany explosions in space, to explain how the plasma (protons and electrons) that makes up cosmic rays acquires energy on the order of 20 magnitudes.

Using state-of-the-art software and Japan's flagship supercomputer, we study the origins of such high-energy charged particles and electromagnetic fields from the first principles that describe their evolution in a self-consistent manner.