Speaker
Daniel Fiorino
Description
The High-Altitude Water Cherenkov (HAWC) Observatory, located 4100 m above sea level near Pico de Orizaba (19° N) in Mexico, is sensitive to gamma rays and cosmic rays at TeV energies. The arrival direction distribution of cosmic rays at these energies shows significant anisotropy on several angular scales, with a relative intensity ranging between $10^{-3}$ and $10^{-4}$. We present the results of a study of cosmic-ray anisotropy based on more than 100 billion cosmic-ray air showers recorded with HAWC since June 2013. The HAWC cosmic-ray sky map, which has a median energy of 2 TeV, exhibits several regions of significantly enhanced cosmic-ray flux. We present the energy dependence of the anisotropy and the cosmic-ray spectrum in the regions of significant excess.
| Registration number following "ICRC2015-I/" | 1224 |
|---|---|
| Collaboration | HAWC |
Authors
Daniel Fiorino
Segev BenZvi
(University of Rochester)
Stefan Westerhoff
(University of Wisconsin-Madison)
