Isotropy of ultra-high-energy cosmic rays and multiple supernova I galactic source

Conference · Thu Apr 07 00:00:00 EST 1983

OSTI ID:6036786

Colgate, S A

Ultra-high-energy cosmic rays are usually associated with an extragalactic origin. Active galactic nuclei are an unlikely source because of photon drag. Here the possibility of supernova events are considered. The time spread of arrival of 10/sup 20/ eV protons is 100 to 400 years at 10 to 20 kpc and the angular spread is +-15 to +-30/sup 0/ depending upon the Galactic field configuration. The time spread is sufficient to include several to a dozen type I SN. This is enough events and angular spread to include the observed data. The concentration of the observed events at the galactic poles is contradictory. The flux is reasonable if the observed flux and slope at 10/sup 12/ to 10/sup 15/ eV is characteristic of the source(s) and confined at this energy for roughly 100 traversals of the Galaxy, or 3 x 10/sup 6/ years.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6036786
• Report Number(s): LA-UR-83-1049; CONF-830830-1; ON: DE83011319
• Resource Relation: Conference: 18. international cosmic ray conference, Bangalore, India, 22 Aug 1983
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC PROTONS
EEV RANGE
SUPERNOVAE
ANGULAR DISTRIBUTION
ISOTROPY
MILKY WAY
ORIGIN
RADIATION FLUX
BARYONS
COSMIC RADIATION
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
ERUPTIVE VARIABLE STARS
FERMIONS
GALAXIES
HADRONS
IONIZING RADIATIONS
NUCLEONS
PROTONS
RADIATIONS
STARS
VARIABLE STARS
640101* - Astrophysics & Cosmology- Cosmic Radiation
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources