Statements (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
feature in cosmic ray energy spectrum
|
| gptkbp:cause |
supernova remnants
change in acceleration mechanism propagation effects in the galaxy |
| gptkbp:characterizedBy |
sudden steepening of the cosmic ray spectrum
|
| gptkbp:discoveredIn |
1950s
|
| https://www.w3.org/2000/01/rdf-schema#label |
Knee (at ~10^15 eV)
|
| gptkbp:observedBy |
cosmic rays
|
| gptkbp:powerSource |
~10^15 eV
|
| gptkbp:bfsParent |
gptkb:Cosmic_rays
|
| gptkbp:bfsLayer |
7
|