An Alternative Explanation of the Varying Boron to Carbon in Galactic Cosmic rays

Abstract

It is suggested that the decline with energy of the boron to carbon abundance ratio in Galactic cosmic rays is due, in part, to a correlation between the maximum energy attainable by shock acceleration in a given region of the Galactic disk and the grammage traversed before escape. In this case the energy dependence of the escape rate from the Galaxy may be less than previously thought and the spectrum of antiprotons becomes easier to understand.

arXiv commentpublished in the Astrophysical Journal

References in corpus (4)

• Galactic Cosmic Rays from Supernova Remnants: II Shock Acceleration of Gas and Dust
• Grammage of cosmic rays around Galactic supernova remnants
• Spectral Intensities of Antiprotons and the lifetime of Cosmic Rays in the Galaxy
• How radiation affects superbubbles: Through momentum injection in early phase and photo-heating thereafter

Cited by in corpus (5)

• Realistic modeling of wind and supernovae shocks in star clusters: addressing ${}^{22}\mathrm{Ne}{/}^{20}\mathrm{Ne}$ and other problems in Galactic cosmic rays
• On particle acceleration and transport in plasmas in the Galaxy: theory and observations
• Cosmic rays from massive star clusters : A close look at Westerlund 1
• Diffuse Galactic Gamma-rays from star clusters
• Ultrarelativistic generalized Lorentzian thermodynamics and the differential cosmic ray energy flux