Cosmic Structure Formation and Dynamics: Cosmological N-body Simulations and Magnetohydrodynamic Simulations
نویسندگان
چکیده
Authors Ryoji Matsumoto Department of Physics, Faculty of Science, Chiba University Hideki Yahagi Department of Astronomy, University of Tokyo Hiroaki Isobe Department of Earth and Planetary Science, University of Tokyo Takaaki Yokoyama Department of Earth and Planetary Science, University of Tokyo Daikou Shiota Kwasan Observatory, Kyoto University Kazunari Shibata Kwasan Observatory, Kyoto University Takehiro Miyagoshi Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency Yoshiaki Kato Center for Computational Sciences, Tsukuba University Mami Machida National Astronomical Observatory, Japan
منابع مشابه
Simulating Cosmic Structure Formation
We describe cosmological simulation techniques and their application to studies of cosmic structure formation, with particular attention to recent hydrodynamic simulations of structure in the high redshift universe. Collisionless N-body simulations with Gaussian initial conditions produce a pattern of sheets, filaments, tunnels, and voids that resembles the observed large scale galaxy distribut...
متن کاملHalo Models of Large Scale Structure and Reliability of Cosmological N -Body Simulations
Halo models of the large scale structure of the Universe are critically examined, focusing on the definition of halos as smooth distributions of cold dark matter. This definition is essentially based on the results of cosmological N-body simulations. By a careful analysis of the standard assumptions of halo models and N-body simulations and by taking into account previous studies of self-simila...
متن کاملCosmic Walls and Filaments Formation in Modied Chaplygin Gas Cosmology
We want to study the perturbation growth of an initial seed of an ellipsoidal shape in Top-Hat collapse model of the structure formation in the Modied Chaplygin gas cosmology. Considering reasonable values of the constants and the parameters of the model under study, we can show that a very small deviation from spherical symmetry (ellipsoidal geometry) in the initial seed leads to a nal highly ...
متن کاملCosmic Structure Formation and Dynamics: Magnetohydrodynamic Simulations of Coronal Heating
By implementing a three-dimensional magnetohydrodynamic (MHD) code based on the CIP-MOCCT scheme, we carried out large scale MHD simulations of the solar atmosphere covering the region from the convection zone to the corona. We found that in regions with weak magnetic fields (B~100G), horizontal magnetic loops created in the upflow regions of the convection generate high frequency waves by reco...
متن کاملEffects of Dimethyl Sulfoxide and Mutations on the Folding of Abeta(25-35) Peptide: Molecular Dynamics Simulations
The 25-35 fragment of the amyloid β (Aβ) peptide is a naturally occurring proteolytic by-product of its larger parent molecule that retains the amyloid characteristics and toxicity of the full length parent molecule. Aggregation of this peptide occurs rapidly in aqueous solutions and thus characterization of its folding process is very difficult. In the present study, early stages of Aβ(25–35) ...
متن کامل