68 citations · 748 across the 29 of their papers we have counts for
11 papers · 1 filter
Convection and Dynamo in Newly-born Neutron Stars
Youhei Masada, Tomoya Takiwaki, Kei Kotake
To study properties of magneto-hydrodynamic (MHD) convection and resultant dynamo activities in proto-neutron stars (PNSs), we construct a "PNS in a box" simulation model with solv…
Propagation, cocoon formation, and resultant destabilization of relativistic jets
Jin Matsumoto, Youhei Masada
A cocoon is a by-product of a propagating jet that results from shock heating at the jet head. Herein, considering simultaneous cocoon formation, we study the stability of relativi…
Neutrino-Dominated Accretion Flows with Magnetic Prandtl Number-Dependent MRI-driven Turbulence
Norita Kawanaka, Youhei Masada
We investigate the stability of a neutrino-dominated accretion flow (NDAF), which is expected to be formed in the gravitational collapse of a massive star or the merger of a neutro…
Chiral magnetohydrodynamic turbulence in core-collapse supernovae
Youhei Masada, Kei Kotake, Tomoya Takiwaki +1
Macroscopic evolution of relativistic charged matter with chirality imbalance is described by the chiral magnetohydrodynamics (chiral MHD). One such astrophysical system is high-de…
Magnetohydrodynamic Turbulence Powered by Magnetorotational Instability in Nascent Proto-Neutron Stars
Youhei Masada, Tomoya Takiwaki, Kei Kotake
Magnetorotational instability (MRI) in a convectively-stable layer around the neutrinosphere is simulated by a three-dimensional model of supernova core. To resolve MRI-unstable mo…
Two-dimensional Numerical Study for Rayleigh-Taylor and Richtmyer-Meshkov Instabilities in Relativistic Jets
Jin Matsumoto, Youhei Masada
We study the stability of a non-rotating single-component jet using two-dimensional special relativistic hydrodynamic simulations. By assuming translational invariance along the je…