ORIGIN OF COSMIC RAYS

Journal Article · Wed Jan 01 04:00:00 EST 1958 · Progr. Theoret. Phys. (Kyoto)

DOI:https://doi.org/10.1143/PTPS.6.1· OSTI ID:4021909

Hayakawa, S; Ito, K; Terashima, Y

An attempt is made to draw a systematic view of the origin of cosmic rays. On the basis of the composition of primary cosmic rays and the galactic radio emission, arguments are presented that the galactic cosmic rays are stored in a galactic halo of spherical shape for a mean lifetime of about lO/sup 8/ years. The local sources of cosmic rays consist of the following: supernovae at which about lO/sup -6/ of ejected particles are accelerated to cosmic ray energy; supergiant and red giant stars at which the above ratio seems to be lO/sup -8/to 10/sup -7/. The chemical composition of cosmic rays from the latter is equal to that of the in- terstellar matter, while the former sources are responsible for the overabundance of heavy nuclei in cosmic rays. The view is summarized and detailed problems are discussed. (auth)

• Research Organization: Kyoto Univ.
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-017473
• OSTI ID: 4021909
• Journal Information: Progr. Theoret. Phys. (Kyoto), Journal Name: Progr. Theoret. Phys. (Kyoto) Vol. Vol: Suppl. No. 6
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACCELERATION
ASTROPHYSICS
COSMIC RADIATION
EFFICIENCY
ELECTRIC CHARGES
ELEMENTS
ENERGY RANGE
EXPLOSIONS
GALAXIES
GIANT STARS
LIFETIME
MASS NUMBER
NUCLEI
PHYSICS
PRIMARY COSMIC RADIATION
PRODUCTION
QUANTITY RATIO
RADIO WAVES
RED GIANTS
SPHERES
STARS
STORAGE
SUPERNOVAE