Revisiting the distance to the nearest ultrahigh energy cosmic ray source: Effects of extragalactic magnetic fields
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Revisiting the distance to the nearest ultrahigh energy cosmic ray source : Effects of extragalactic magnetic fields. / Lang, Rodrigo Guedes; Taylor, Andrew M.; Ahlers, Markus; de Souza, Vitor.
I: Physical Review D, Bind 102, Nr. 6, 063012, 11.09.2020.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Revisiting the distance to the nearest ultrahigh energy cosmic ray source
T2 - Effects of extragalactic magnetic fields
AU - Lang, Rodrigo Guedes
AU - Taylor, Andrew M.
AU - Ahlers, Markus
AU - de Souza, Vitor
PY - 2020/9/11
Y1 - 2020/9/11
N2 - We update the constraints on the location of the nearest ultrahigh energy cosmic ray (UHECR) source. By analyzing recent data from the Pierre Auger Observatory using state-of-the-art CR propagation models, we reaffirm the need of local sources with a distance less than 25-100 Mpc, depending on mass composition. A new fast semianalytical method for the propagation of UHECR in environments with turbulent magnetic fields is developed. The onset of an enhancement and a low-energy magnetic horizon of cosmic rays from sources located within a particular distance range is demonstrated. We investigate the distance to the nearest source, taking into account these magnetic field effects. The results obtained highlight the robustness of our constrained distances to the nearest source.
AB - We update the constraints on the location of the nearest ultrahigh energy cosmic ray (UHECR) source. By analyzing recent data from the Pierre Auger Observatory using state-of-the-art CR propagation models, we reaffirm the need of local sources with a distance less than 25-100 Mpc, depending on mass composition. A new fast semianalytical method for the propagation of UHECR in environments with turbulent magnetic fields is developed. The onset of an enhancement and a low-energy magnetic horizon of cosmic rays from sources located within a particular distance range is demonstrated. We investigate the distance to the nearest source, taking into account these magnetic field effects. The results obtained highlight the robustness of our constrained distances to the nearest source.
KW - PROPAGATION
KW - SPECTRUM
KW - END
U2 - 10.1103/PhysRevD.102.063012
DO - 10.1103/PhysRevD.102.063012
M3 - Journal article
VL - 102
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 6
M1 - 063012
ER -
ID: 248934456