Implications of HEAO 3 data for the acceleration and propagation of galactic cosmic rays

Journal Article · Thu Sep 15 04:00:00 EDT 1983 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/161337· OSTI ID:5475050

Ormes, J F; Protheroe, R J

We reexamine the energy dependence of the mean escape length of cosmic rays from the Galaxy in the light of recent measurements of cosmic-ray abundances from the Danish-French experiment on HEAO 3. On comparing these data with results of our propagation calculations, we find that the energy dependence is steeper than previously thought. The boron to carbon, nitrogen to oxygen, and 21< or =Z< or =25 to iron ratios at energies above 2.8 GeV per nucleon are best fitted with 95% confidence by a rigidity dependence R/sup -0.7plus-or-minus0.1/.

• Research Organization: Laboratory for High Energy Astrophysics, NASA Goddard Space Flight Center
• OSTI ID: 5475050
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 272:2; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640101* -- Astrophysics &amp; Cosmology-- Cosmic Radiation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
COSMIC NUCLEI
COSMIC RADIATION
COSMIC RAY PROPAGATION
ENERGY SPECTRA
GALAXIES
IONIZING RADIATIONS
MILKY WAY
NUCLEI
PLASMA ACCELERATION
PRIMARY COSMIC RADIATION
RADIATIONS
SECONDARY COSMIC RADIATION
SHOCK WAVES
SPECTRA