Astrophysics of extremely high energy cosmic rays: observational status and new projects

1990, 252 Greisen, 1966, Phys. Rev. Lett., 16, 748, 10.1103/PhysRevLett.16.748 Zatsepin, 1966, Pisma Zh. Eksp. Teor. Fiz., 4, 114 Yoshida, 1993, Prog. Theor. Phys., 89, 833, 10.1143/ptp/89.4.833 Nagano, 1984, J. Phys. Soc. Japan, 53, 1667, 10.1143/JPSJ.53.1667 Chiba, 1992, Nucl. Instr. and Meth., A311, 338, 10.1016/0168-9002(92)90882-5 Amenomori, 1996, Ap. J., 461, 461, 10.1086/177069 Grigorov, 1971, 5, 1760 Asakimori, 1993, 2, 25 Ichimura, 1993, Phys. Rev., D48, 1949 Hillas, 1971, 3, 1001 Dai, 1988, J. Phys. G: Nucl. Phys., 14, 793, 10.1088/0305-4616/14/6/020 Yoshida, 1994, J. Phys. G: Nucl. Part. Phys., 20, 651, 10.1088/0954-3899/20/4/011 Doi, 1996, ICRR-Report-353-96-4, 1 Lawrence, 1991, J. Phys. G: Nucl. Phys., 17, 733, 10.1088/0954-3899/17/5/019 Afanasiev, 1993, 35 Bird, 1994, Ap. J., 424, 491, 10.1086/173906 Yoshida, 1995, Astroparticle Phys., 3, 105, 10.1016/0927-6505(94)00036-3 Stanev, 1995, Phys. Rev. Lett., 75, 3056, 10.1103/PhysRevLett.75.3056 de Vancouleurs, 1956, Vistas in Astronomy, 2, 1584, 10.1016/0083-6656(56)90087-3 Shaver, 1989, Astron. & Astrophys., 220, 35 Hayashida, 1996, Phys. Rev. Lett., 77, 1000, 10.1103/PhysRevLett.77.1000 Baltrusaitis, 1985, Nucl. Instr. Meth., A240, 410, 10.1016/0168-9002(85)90658-8 Gaisser, 1993, Phys. Rev. D, 47, 1919, 10.1103/PhysRevD.47.1919 Bird, 1993, Phys. Rev. Lett., 71, 4301, 10.1103/PhysRevLett.71.3401 Hillas, 1992, 28B, 67 Cronin, 1992, University of Chicago preprint EFI 92-8 Dawson, 1993, 125 Hayashida, 1995, J. Phys. G: Nucl. Phys., 21, 1101, 10.1088/0954-3899/21/8/008 Hayashida, 1994, Phys. Rev. Lett., 73, 3491, 10.1103/PhysRevLett.73.3491 Bird, 1995, Ap. J., 424, 491, 10.1086/173906 Bhattacharjee, 1989, Phys. Rev., D40, 3968 Bhattacharjee, 1992, Phys. Rev. Lett., 69, 567, 10.1103/PhysRevLett.69.567 Loh, 1993, 105 Teshima, 1992, 28B, 169 1995, Pierre Auger Project Design Report