TY - JOUR
T1 - Ultrahigh Energy Cosmic Rays
T2 - A Galactic Origin?
AU - Eichler, David
AU - Globus, Noemie
AU - Kumar, Rahul
AU - Gavish, Eyal
N1 - Publisher Copyright:
© 2016. The American Astronomical Society. All rights reserved..
PY - 2016/4/20
Y1 - 2016/4/20
N2 - It is suggested that essentially all UHECRs we detect, including those at the highest energies, originate in our Galaxy. It is shown that even if the density of sources decreases with Galactic radius, then the anisotropy and composition can be understood. Inward anisotropy, as recently reported by the Auger collaboration can be understood as drift along the current sheet of UHECRs, originating outside of the solar circle, as predicted in Kumar & Eichler, while those originating within the solar circle exit the Galaxy at high latitudes.
AB - It is suggested that essentially all UHECRs we detect, including those at the highest energies, originate in our Galaxy. It is shown that even if the density of sources decreases with Galactic radius, then the anisotropy and composition can be understood. Inward anisotropy, as recently reported by the Auger collaboration can be understood as drift along the current sheet of UHECRs, originating outside of the solar circle, as predicted in Kumar & Eichler, while those originating within the solar circle exit the Galaxy at high latitudes.
KW - acceleration of particles
KW - cosmic rays
KW - shock waves
UR - http://www.scopus.com/inward/record.url?scp=84964639938&partnerID=8YFLogxK
U2 - 10.3847/2041-8205/821/2/L24
DO - 10.3847/2041-8205/821/2/L24
M3 - Article
AN - SCOPUS:84964639938
SN - 2041-8205
VL - 821
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 2
M1 - L24
ER -