Abstract
The hypothesis is considered that the present, local Galactic cosmic-ray spectrum is, due to source intermittency, softer than average over time and over the Galaxy. Measurements of muogenic nuclides underground could provide an independent measurement of the time-averaged spectrum. Source intermittency could also account for the surprising low anisotropy reported by the IceCube Collaboration. Predictions for Galactic emission of ultrahigh-energy (UHE) quanta, such as UHE gamma rays and neutrinos, might be higher or lower than previously estimated.
| Original language | English |
|---|---|
| Article number | 138 |
| Journal | Astrophysical Journal |
| Volume | 769 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1 Jun 2013 |
Keywords
- cosmic rays
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science