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Enhancement of high-energy cosmic-ray spectrum by type-II supernovae

Authors :
Martin C. Weisskopf
Shigeki Miyaji
Takayoshi Hayashi
Thomas A. Parnell
Yoshiyuki Takahashi
Ken'ichi Nomoto
Source :
Nature. 321:839-841
Publication Year :
1986
Publisher :
Springer Science and Business Media LLC, 1986.

Abstract

The cosmic-ray spectrum has an intensity enhancement in the energy range 10 to the 14th to 10 to the 16th eV per nucleus. Recent observations of heavy cosmic rays in this energy range indicate that the Ca/Fe ratio may be as large as 10 times the solar value. It is suggested that pulsars in type-II supernova remnants are the origin of this component of the cosmic-ray spectrum.

Subjects

Subjects :
Physics
Range (particle radiation)
Multidisciplinary
Astrophysics::High Energy Astrophysical Phenomena
Astrophysics::Instrumentation and Methods for Astrophysics
Astronomy
Cosmic ray
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Type II supernova
Intensity (physics)
Supernova
medicine.anatomical_structure
Pulsar
medicine
Supernova remnant
Nucleus

Details

ISSN :
14764687 and 00280836
Volume :
321
Database :
OpenAIRE
Journal :
Nature
Accession number :
edsair.doi...........9d601a7b026384e3f2beec25e47502ef
Full Text :
https://doi.org/10.1038/321839a0
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