Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Tsuchiya, Toshio"'
Publikováno v:
Astrophys.J. 589 (2003) L29-L32
We explore an accretion origin for Omega Cen by N-body modeling of the orbital decay and disruption of a Milky-Way dwarf satellite. This work is focused on studying a particular satellite model that aims to reproduce the present orbit of Omega Cen, a
Externí odkaz:
http://arxiv.org/abs/astro-ph/0304262
Autor:
Tsuchiya, Toshio
Publikováno v:
New Astron. 7 (2002) 293
Multi-scale interaction between the LMC, Galactic halo, and the disk is examined with N-body simulations, and precise amplitudes of the Galactic warp excitation are obtained. The Galactic models are constructed most realistically to satisfy available
Externí odkaz:
http://arxiv.org/abs/astro-ph/0203505
Using N-body numerical simulations, we examine possible mechanisms for the origin of the intracluster starlight features recently discovered in the Coma cluster of galaxies. We show that tidal interactions of a ``normal'' elliptical galaxy with a sym
Externí odkaz:
http://arxiv.org/abs/astro-ph/0011339
A recent observation with the Hipparcos satellite and some numerical simulations imply that the interaction between an oblate halo and a disc is inappropriate for the persistence of galactic warps. Then, we have compared the time evolution of galacti
Externí odkaz:
http://arxiv.org/abs/astro-ph/9910030
Akademický článek
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Autor:
Tsuchiya, Toshio, Gouda, Naoteru
The relation between relaxation, the time scale of Lyapunov instabilities, and the Kolmogorov-Sinai time in a one-dimensional gravitating sheet system is studied. Both the maximum Lyapunov exponent and the Kolmogorov-Sinai entropy decrease as proport
Externí odkaz:
http://arxiv.org/abs/chao-dyn/9812015
Publikováno v:
ApJ (1998) Vol.505, pp.607
Using N-body and SPH modeling we perform 3D numerical simulations of head-on collisions between gas rich disk galaxies, including collisions between counter-rotating disks and off-center collisions. Pure stellar intruders do not produce gaseous plume
Externí odkaz:
http://arxiv.org/abs/astro-ph/9806008
Publikováno v:
In Procedia Computer Science 2017 105:87-92
Publikováno v:
Astrophys.Space Sci. 257 (1998) 319-341
This is the third paper of the series of our studies of the one-dimensional self-gravitating many-body systems. In this paper, we thus study the transition phenomena after the first transition from a quasiequilibrium. We found that irrespective of th
Externí odkaz:
http://arxiv.org/abs/astro-ph/9608162
Publikováno v:
Phys.Rev. E53 (1996) 2210
Though one dimensional self-gravitating $N$-body systems have been studied for three decade, the nature of relaxation was still unclear. There were inconsistent results about relaxation time; some initial state relaxed in the time scale $T\sim N\,t_c
Externí odkaz:
http://arxiv.org/abs/astro-ph/9506018