Propagation of ultrahigh energy protons in the nearby universe -: art. no. 093005

被引:136
作者
Stanev, T [1 ]
Engel, R
Mücke, A
Protheroe, RJ
Rachen, JP
机构
[1] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA
[2] Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia
[3] Univ Montreal, Dept Phys, Montreal, PQ H3C 3J7, Canada
[4] Univ Utrecht, Sterrekundig Inst, NL-3584 CC Utrecht, Netherlands
关键词
D O I
10.1103/PhysRevD.62.093005
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a new calculation of the propagation of protons with energies above 10(19) eV over distances of up to several hundred Mpc. The calculation is based on a Monte Carlo approach using the event generator SOPHIA for the simulation of hadronic nucleon-photon interactions and a realistic integration of the particle trajectories in a random extragalactic magnetic field. Accounting for the proton scattering in the magnetic field affects noticeably the nucleon energy as a function of the distance to their source and allows us to give realistic predictions on arrival energy, time delay, and arrival angle distributions and correlations as well as secondary particle production spectra.
引用
收藏
页码:1 / 12
页数:12
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