Search Results - "Sota, Yasuhide"

Local Virial Relation and Velocity Anisotropy for Collisionless Self-Gravitating Systems by Sota, Yasuhide, Iguchi, Osamu, Morikawa, Masahiro, Nakamichi, Akika

“…The collisionless quasi-equilibrium state realized after the cold collapse of self-gravitating systems has two remarkable characters. One of them is the linear…”
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Local virial relation for self-gravitating system by Iguchi, Osamu, Sota, Yasuhide, Nakamichi, Akika, Morikawa, Masahiro

“…We demonstrate that the quasi-equilibrium state in a self-gravitating N-body system after cold collapse is uniquely characterized by the local virial relation…”
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Universal non-Gaussian velocity distribution in violent gravitational processes by Iguchi, Osamu, Sota, Yasuhide, Tatekawa, Takayuki, Nakamichi, Akika, Morikawa, Masahiro

“…We study the velocity distribution in spherical collapses and cluster-pair collisions by use of N -body simulations. Reflecting the violent gravitational…”
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Self-organized relaxation in a collisionless gravitating system by Sota, Yasuhide, Iguchi, Osamu, Tashiro, Tohru, Morikawa, Masahiro

“…We propose the self-organized relaxation process which drives a collisionless self-gravitating system to the equilibrium state satisfying local virial (LV)…”
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Renormalization group approach in Newtonian cosmology by Sota, Yasuhide, Kobayashi, Toshiyuki, Maeda, Kei-ichi, Kurokawa, Tomomi, Morikawa, Masahiro, Nakamichi, Akika

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Statistical mechanics of self-gravitating system: Cluster expansion method by Iguchi, Osamu, Kurokawa, Tomomi, Morikawa, Masahiro, Nakamichi, Akika, Sota, Yasuhide, Tatekawa, Takayuki, Maeda, Kei-ichi

“…We study statistical mechanics of the self-gravitating system applying the cluster expansion method developed in solid state physics. By summing infinite…”
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Origin of scaling structure and non-Gaussian velocity distribution in a self-gravitating ring model by Sota, Y, Iguchi, O, Morikawa, M, Tatekawa, T, Maeda Ki, K

“…Fractal structures and non-Gaussian velocity distributions are characteristic properties commonly observed in virialized self-gravitating systems, such as…”
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Gravitational Fugacity as the seed of self-organized violent relaxaton process toward Local Virial relation by Sota, Yasuhide, Iguchi, Osamu, Tashiro, Tohru, Morikawa, Masahiro

“…We propose the self-organized relaxation process which drives a collisionless self-gravitating system (SGS) to the equilibrium state satisfying local virial…”
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Local virial relation for self-gravitating system by Iguchi, Osamu, Sota, Yasuhide, Nakamichi, Akika, Morikawa, Masahiro

“…Phys.Rev.E73:046112,2006 We demonstrate that the quasi-equilibrium state in self-gravitating $N$-body system after cold collapse are uniquely characterized by…”
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Chaos in Static Axisymmetric Spacetimes II : non-vacuum case by Sota, Yasuhide, Suzuki, Shingo, Maeda, Kei-ichi

“…We examine the effect of local matter on the chaotic behavior of a relativistic test particle in non-vacuum static axisymmetric spacetimes. We find that the…”
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Origin of scaling structure and non-gaussian velocity distribution in self-gravitating ring model by Sota, Yasuhide, Iguchi, Osamu, Morikawa, Masahiro, Tatekawa, Takayuki, Maeda, Kei-ichi

“…Fractal structures and non-Gaussian velocity distributions are characteristic properties commonly observed in virialized self-gravitating systems such as…”
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Statistical Mechanics of Self--Gravitating System : Cluster Expansion Method by Iguchi, Osamu, Kurokawa, Tomomi, Morikawa, Masahiro, Nakamichi, Akika, Sota, Yasuhide, Tatekawa, Takayuki, Maeda, Kei--ichi

“…Phys.Lett. A260 (1999) 4-9 We study statistical mechanics of the self--gravitating system applying the cluster expansion method developed in solid state…”
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