A Test of the Copernican Principle
- Authors: R. R. Caldwell, A. Stebbins
Constraining the cosmic ray source spectrum from observations in the GZK regime
- Authors: M.Kachelriess, E.Parizot, D.V.Semikoz
When GRB afterglows get softer, hard components come into play
- Authors: A. Moretti (1), R. Margutti (1,2), F. Pasotti (1,2), A.P. Beardmore (3), S. Campana (1), G. Chincarini (2,1), S. Covino (1), O. Godet (3), C. Guidorzi (2,1) J.P. Osborne (3), P. Romano (2,1), G. Tagliaferri (1) ((1) INAF-OAB; (2) U. Bicocca; (3) U. Leicester)