165 citations · 2.1k across the 51 of their papers we have counts for
52 papers
Electron-Ion Temperature Ratio in Astrophysical Shocks
John C. Raymond, Parviz Ghavamian, Artem Bohdan +9
Collisionless shock waves in supernova remnants and the solar wind heat electrons less effectively than they heat ions, as is predicted by kinetic simulations. However, the values…
Energy Partition of Thermal and Nonthermal Particles in Magnetic Reconnection
Masahiro Hoshino
Magnetic reconnection has long been known to be the most important mechanism as quick conversion of magnetic field energy into plasma kinetic energy. In addition, energy dissipatio…
Nonthermal Electron Acceleration at Collisionless Quasi-perpendicular Shocks
T. Amano, Y. Matsumoto, A. Bohdan +6
Shock waves propagating in collisionless heliospheric and astrophysical plasmas have been studied extensively over the decades. One prime motivation is to understand the nonthermal…
A geometric speed limit for acceleration by natural selection in evolutionary processes
Masahiro Hoshino, Ryuna Nagayama, Kohei Yoshimura +2
We derived a new speed limit in population dynamics, which is a fundamental limit on the evolutionary rate. By splitting the contributions of selection and mutation to the evolutio…
Efficiency of Nonthermal Particle Acceleration in Magnetic Reconnection
Masahiro Hoshino
The nonthermal particle acceleration during magnetic reconnection remains a fundamental topic in several astrophysical phenomena, such as solar flares, pulsar wind, magnetars, etc,…
Theory of Electron Injection at Oblique Shock of Finite Thickness
Takanobu Amano, Masahiro Hoshino
A theory of electron injection into diffusive shock acceleration (DSA) for the generation of cosmic-ray electrons at collisionless shocks is presented. We consider a recently propo…