TY - JOUR
T1 - Implications of ultra-high-energy cosmic rays for transient sources in the auger era
AU - Murase, Kohta
AU - Takami, Hajime
PY - 2009
Y1 - 2009
N2 - We study ultra-high-energy cosmic rays (UHECRs) from transient sources, propagating in the Galactic and intergalactic space. Based on recent observational results, we also estimate upper and lower bounds on the rate of transient UHECR sources and the required isotropic cosmic-ray energy input per burst as 0.1 Gpc-3 yr-1 ≤ ρ0 ≤ 103.5 Gpc-3 yr-1 and 10 erg ≤ εisohecr ≤ 1054 erg by constraining the apparent burst duration, i.e., dispersion in arrival times of UHECRs. Based on these bounds, we discuss implications for proposed candidates such as gamma-ray bursts and active galactic nuclei.
AB - We study ultra-high-energy cosmic rays (UHECRs) from transient sources, propagating in the Galactic and intergalactic space. Based on recent observational results, we also estimate upper and lower bounds on the rate of transient UHECR sources and the required isotropic cosmic-ray energy input per burst as 0.1 Gpc-3 yr-1 ≤ ρ0 ≤ 103.5 Gpc-3 yr-1 and 10 erg ≤ εisohecr ≤ 1054 erg by constraining the apparent burst duration, i.e., dispersion in arrival times of UHECRs. Based on these bounds, we discuss implications for proposed candidates such as gamma-ray bursts and active galactic nuclei.
UR - http://www.scopus.com/inward/record.url?scp=65649145384&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=65649145384&partnerID=8YFLogxK
U2 - 10.1088/0004-637X/690/1/L14
DO - 10.1088/0004-637X/690/1/L14
M3 - Article
AN - SCOPUS:65649145384
SN - 0004-637X
VL - 690
SP - L14-L17
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1 PART 2
ER -