1999/08/04 by I. V. Moskalenko, I.V. Moskalenko, A. W. Strong +1 · 20 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Cosmic ray #Cosmology #Dark Matter and Cosmic Phenomena #Electron #Galactic Center #Galactic halo #Galaxy #Gamma-ray bursts and supernovae #Halo #Interstellar medium #astro-ph
paper · pdf · doi:10.1023/a:1002604831398
published in Astrophysics and Space Science 272(1-3), 247-254 (Springer Science+Business Media) · 8 pages, 9 ps-figures. Talk given at the Int. Conf. on "Astrophysical Dynamics" (Evora, April 14-16, 1999). To appear in Astrophys. & Space Sci., D. Berry, D. Breitschwerdt, A. da Costa, J. Dyson (eds). More details can be found at http://www.gamma.mpe-garching.mpg.de/~aws/aws.html
arxiv created 1999/08/04 · openalex publication_date 2000/07/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have developed a model which aims to reproduce observational data of many kinds related to cosmic-ray (CR) origin and propagation: direct measurements of nuclei, antiprotons, electrons and positrons, gamma-rays, and synchrotron radiation. Our main results include evaluation of diffusion/convection and reacceleration models, estimates of the halo size, calculations of the interstellar positron and antiproton spectra, evaluation of alternative hypotheses of nucleon and electron interstellar spectra, and computation of the Galactic diffuse gamma-ray emission. Recently our CR propagation code has been generalized to include fragmentation networks of arbitrary complexity. The code can now provide an alternative to leaky-box calculations for full isotopic abundance calculations and has the advantage of including the spatial dimension which is essential for radioactive nuclei. Preliminary predictions for sub-Fe/Fe, 10Be/9Be and 26Al/27Al are presented in anticipation of new experimental isotopic data. We show that combining information from classical CR studies with gamma-ray and other data leads to tighter constraints on CR origin and propagation.