C. Saito

A Possible Approach to Three‐dimensional Cosmic‐Ray Propagation in the Galaxy. II. Stable Nuclei with Energy Change

T. Shibata, M. Hareyama, Masataka Nakazawa, C. Saito

We extend our model of three-dimensional cosmic-ray propagation without energy change to that including energy change due to reacceleration and ionization energy loss. We assume that there is no boundary in both the radial spread of the disk and the latitudinal spread …

jp (code pays fourni par la source)

Cosmic-Ray Spectra and Composition in the Energy Range of 10-1000 TeV per Particle Obtained by the RUNJOB Experiment

V. A. Derbina, V. I. Galkin, M. Hareyama, Yuichi Hirakawa et autres

This is a full report on the cosmic-ray spectra and composition obtained by the emulsion chambers on board 10 long-duration balloons, launched from Kamchatka between 1995 and 1999. The total exposure of these campaigns amounts to 575 m 2 hr, with an …

ru, jp (code pays fourni par la source)

RUNJOB実験で得られた粒子あたり10-1000 1TeVのエネルギー領域での宇宙線スペクトルと構成

Derbina Va, Galkin Vi, M. Hareyama, Yuichi Hirakawa et autres

A Possible Approach to Three‐Dimensional Cosmic‐Ray Propagation in the Galaxy. I. Stable Nuclei without Energy Change

T. Shibata, M. Hareyama, Masataka Nakazawa, C. Saito

We present an analytical solution of the three-dimensional cosmic-ray propagation in our Galaxy, adopting a more realistic structure of the Galaxy than conventional propagation studies. We assume that there is no boundary in both longitudinal distance r from the disk center and …

jp (code pays fourni par la source)

Propagation of Radioactive Secondaries in Cosmic Rays

T. Shibata, M. Hareyama, K. Ito, Masataka Nakazawa et autres

Based on the analytical solution of the cosmic-ray propagation recently we have obtained, we apply it for the radioactive secondaries, such as Be. We assume our Galaxy is boundaryless in both longitudinal and the latitudinal directions, and the diffusion coefficient depends on …

Abundance Ratio of Secondary to Primary Expected from the Boundaryless Galaxy Model

M. Hareyama, Masataka Nakazawa, C. Saito, Ryotaku Suzuki et autres

Based on the boundaryless Galaxy model, we present secondary to primary ratio in the high energy region, ∼5GeV/n, where the low energy effect such as reacceleration and the ionization energy loss is negligible. We focus on two data, B/C and sub-Fe(21-23)/iron, and …

Diffused Gamma-Rays and the Cosmic-Ray Propagation

T. Shibata, M. Hareyama, Masataka Nakazawa, C. Saito et autres

Cosmic-Ray Propagation and the Energy Spectra Observed on Earth

M. Hareyama, Masataka Nakazawa, C. Saito, Ryo Suzuki et autres

We assume that our Galaxy is boundaryless, and both the diffusion coefficient and the gas density depend on the spatial coordinate r(r, z) in the form of the exponential type, and we take the rigidity dependence of the diffusion coefficient into account, …