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Possible Extragalactic Sources of the Highest Energy Cosmic Rays a
Author(s) -
RACHEN JÖRG P.
Publication year - 1995
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1995.tb17587.x
Subject(s) - physics , citation , library science , annals , astrophysics , computer science , history , classics
We give an outline of possible extragalactic explanations of the highestenergy cosmic ray events. We give a classification of the possible particleswhich could have caused the events and try to find suitable sources for eachclass. In contrast to some previous investigations of other authors, we find apossible candidate of a local FR-II radio galaxy close to the Fly's Eye event,and less powerful active galaxies close to the AGASA event. We also note theinteresting coincidence that we have strong, distant quasars inside the arrivaldirection error regimes of both the Fly's Eye and AGASA event. We brieflydiscuss the consequences for the cosmic ray spectrum and composition at highestenergies, which could be investigated by future experiments.Comment: Contributed paper to the 17th Texas Symposium, Munich, Dec 1994; 4 pages, uudecoded compressed PostScript file, figures included