The ultra heavy comsic ray data from the Dublin-ESTEC experiment on LDEF satellite and a halo diffusion model for cosmic rays

Details The ultra heavy comsic ray data from the Dublin-ESTEC experiment on LDEF satellite and a halo diffusion model for cosmic rays The ultra heavy comsic ray data from the Dublin-ESTEC experiment on LDEF satellite and a halo diffusion model for cosmic rays

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..15...49j&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 15, no. 6, p. (6)49-(6)58

Astronomy and Astrophysics

Astronomy

Abundance, Cosmic Rays, Galactic Halos, Heavy Nuclei, Milky Way Galaxy, Particle Diffusion, Propagation, Proton Flux Density, Actinide Series, Antiprotons, Astronomical Models, Distribution Functions, Gamma Rays, Long Duration Exposure Facility, Radiation Counters

Scientific paper

The preliminary results for the ultra heavy cosmic ray component measured by the DUBLIN-ESTEC experiment on the Long Duration Exposure Facility (LDEF) satellite has given 'next generation' quality data, which will provide quantitative implications regarding the nature of cosmic ray sources, for which no entirely satisfactory answer has yet been given. These data are compared with a new source and propagation model for cosmic rays - the halo diffusion model. The halo diffusion model assumes the comsic ray sources in the inner Galaxy and the propagation of cosmic rays from this region via the galactic halo to the Sun. Nearly all processes for energy or particle losses are considered. A primary result is the good agreement between the observed and calculated abundances of ultra heavy cosmic rays. Moreover the observed galactic cosmic ray gradient can be explained by means of this realistic model and the calculated antiproton flux is in the order of the measured one at the Earth.

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