Inferred Cosmic-Ray Spectrum from Fermi Large Area Telescope γ-Ray Observations of Earth’s Limb
Mar 21, 2014- Phys.Rev.Lett. 112 (2014) 151103
- Published: Apr 17, 2014
- 1403.5372 [astro-ph.HE]
- FERMILAB-PUB-14-378-A
Citations per year
Recent accurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA reveal an unexpected hardening in the proton and He spectra above a few hundred GeV, a gradual softening of the spectra just below a few hundred GeV, and a harder spectrum of He compared to that of protons. These newly discovered features may offer a clue to the origin of high-energy CRs. We use the Fermi Large Area Telescope observations of the
- Accepted by PRL for publication; Contact authors: Stefan Funk, Warit Mitthumsiri, Igor Moskalenko; 2 figures
- 96.50.sb
- 95.85.Pw
- 95.85.Ry
- 98.70.Sa
- p: spectrum
- cosmic radiation: spectrum
- photon: energy
- helium: spectrum
- gamma ray: emission
- GLAST
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