127 citations · 1.6k across the 42 of their papers we have counts for
42 papers
Collisionless damping of the gravitational instability in fuzzy dark matter: spectral shape and quantum-to-thermal crossover
Yosuke Matsumoto, Kohji Yoshikawa, Naoki Yoshida
We present a quantum-kinetic linear theory of the gravitational instability in the context of fuzzy dark matter universe. Starting from the Wigner transport equation, we apply Land…
A 400 Trillion-Grid Vlasov Simulation on Fugaku Supercomputer: Large-Scale Distribution of Cosmic Relic Neutrinos in a Six-dimensional Phase Space
Kohji Yoshikawa, Satoshi Tanaka, Naoki Yoshida
We report a Vlasov simulation of cosmic relic neutrinos combined with N-body simulation of cold dark matter in the context of large-scale structure formation in the Universe perfor…
Cosmological Vlasov-Poisson Simulations of Structure Formation with Relic Neutrinos: Nonlinear Clustering and the Neutrino Mass
Kohji Yoshikawa, Satoshi Tanaka, Naoki Yoshida +1
We present the results of cosmological simulations of large-scale structure formation with massive neutrinos. The phase-space distribution of the cosmic relic neutrinos is followed…
Cool core disturbed: Observational evidence for coexistence of sub-sonic sloshing gas and stripped shock-heated gas around the core of RX J1347.5-1145
Shutaro Ueda, Tetsu Kitayama, Masamune Oguri +13
RXJ1347.5-1145 (z = 0.451) is one of the most luminous X-ray galaxy clusters, which hosts a prominent cool core and exhibits a signature of a major merger. We present the first dir…
Properties of the cosmological filament between two clusters: A possible detection of a large-scale accretion shock by
H. Akamatsu, Y. Fujita, T. Akahori +7
We report on the results of a observation of the plasma in the filament located between the two massive clusters of galaxies Abell 399 and Abell 401. Abell 399 (=0.0724…
Multidimensional VlasovPoisson Simulations with High-order Monotonicity- and Positivity-preserving Schemes
Satoshi Tanaka, Kohji Yoshikawa, Takashi Minoshima +1
We develop new numerical schemes for Vlasov--Poisson equations with high-order accuracy. Our methods are based on a spatially monotonicity-preserving (MP) scheme and are modified s…