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Article type: Cover
1988 Volume 77 Issue 3 Pages
Cover1-
Published: June 20, 1988
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Article type: Appendix
1988 Volume 77 Issue 3 Pages
App1-
Published: June 20, 1988
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Article type: Appendix
1988 Volume 77 Issue 3 Pages
C1-C2
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C3-C10
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C11-C19
Published: June 20, 1988
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Shogo Inagaki
Article type: Article
1988 Volume 77 Issue 3 Pages
C20-C29
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C30-C37
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C38-C45
Published: June 20, 1988
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[in Japanese], [in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C46-C57
Published: June 20, 1988
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[in Japanese], [in Japanese], [in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C58-C62
Published: June 20, 1988
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Makoto Yoshikawa
Article type: Article
1988 Volume 77 Issue 3 Pages
C63-C76
Published: June 20, 1988
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The motions of asteroids in the mean motion resonances with Jupiter are investigated by a semi-analytical model. By using this model, it is found that eccentricities of asteroids may become very large when asteroids are in one of the resonances. These large increases in eccentricity are also confirmed by the numerical integrations. The gaps in the asteroidal belt can be explained by these large variations of eccentricities. It is known that asteroids show chaotic behavior when they are in the mean motion resonances. In this paper, the chaotic behavior of asteroids in the 7:3 resonance is shown.
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[in Japanese], [in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C77-C79
Published: June 20, 1988
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MIKIO NAGASAWA, SHOKEN M. MIYAMA
Article type: Article
1988 Volume 77 Issue 3 Pages
C80-C89
Published: June 20, 1988
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The collisions between self-gravitating gas (e.g. interstellar clouds or stars) are investigated using the three dimensional Smoothed Particle Hydrodynamics. We solve the Euler equation coupled with the Poisson equation numerically. The formalism to calculate the energy equation and to include the radiation reaction of gravitational waves are also presented. In the gas system with Newtonian gravity, the criterion for gravitational instability is known as the Jeans criterion by linear perturbation theory. We simulate the nonlinear evolution and find the dynamical criterion different from that. In supersonic head-on collisions between two stable isothermal clouds, the shock compression increases the density and the self-gravity can trigger the instability or induce the quadrupole oscillation as expected in the tensor virial analysis. When we include the gas cooling effect, the cloud fragments into small pieces. In the case of off-center collisions, the outcomes depend on the nondimensional constant q ≡ JC_s/GM^2, where M is the total mass, J is the total angular momentum and C_s is the sound velocity of isothermal gas. If the parameter is small, q * 0.2, the shock compression triggers the gravitational collapse and the rapidly rotating core forms near the collisional center. The system with q * 0.4 starts fission to form the binary cloud system after the collisional merging, For the intermediate case, they make a merged disk with a bar-spiral structure.
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C90-C91
Published: June 20, 1988
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[in Japanese], [in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C92-C95
Published: June 20, 1988
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M. UMEMURA
Article type: Article
1988 Volume 77 Issue 3 Pages
C96-C101
Published: June 20, 1988
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The application of percolation theory to the analysis of large-scale structures in the Universe is proposed. It is found that the percolation analysis is an effective method in that it can discriminate not only the geometry but also the directionality of structures. This method is more powerful, if it is combined with Fractal analysis (two-point correlation function), nearest neighbor analysis, and pair separation analysis.
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C102-
Published: June 20, 1988
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[in Japanese], [in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C103-C111
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C112-C117
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C118-C119
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C119-C122
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C123-C130
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C130-C132
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C132-C138
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C139-C154
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C155-C167
Published: June 20, 1988
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[in Japanese], [in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C167-C172
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C173-C179
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C179-C184
Published: June 20, 1988
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[in Japanese]
Article type: Article
1988 Volume 77 Issue 3 Pages
C184-C211
Published: June 20, 1988
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Article type: Appendix
1988 Volume 77 Issue 3 Pages
App2-
Published: June 20, 1988
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Article type: Appendix
1988 Volume 77 Issue 3 Pages
App3-
Published: June 20, 1988
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Article type: Cover
1988 Volume 77 Issue 3 Pages
Cover2-
Published: June 20, 1988
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Article type: Cover
1988 Volume 77 Issue 3 Pages
Cover3-
Published: June 20, 1988
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