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HIGH-ENERGY ASTROPHYSICS: Gamma Ray Bursts May Pack a One-Two Punch
Govert Schilling
Most astrophysicists puzzling over what causes gamma ray bursts--short, intense explosions of high-energy photons that occur deep in space--now agree that the answer is a hypernova, the blast of energy released when a supermassive star collapses into a black hole. Two papers in this issue of Science (pp. 953 and 955), reporting on new x-ray observations of two gamma ray bursts, argue that the hypernova model tells only half of the story. On its way to becoming a black hole, the authors propose, the supermassive star actually collapses twice.
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In Science Magazine
NEWS FOCUS
Govert Schilling (3 November 2000) Science290 (5493), 927.
[DOI: 10.1126/science.290.5493.927] |Summary »|Full Text »
REPORTS
Lorenzo Amati, Filippo Frontera, Mario Vietri, Jean J. M. in't Zand, Paolo Soffitta, Enrico Costa, Stefano Del Sordo, Elena Pian, Luigi Piro, Lucio A. Antonelli, D. Dal Fiume, Marco Feroci, Giangiacomo Gandolfi, Cristiano Guidorzi, John Heise, Erik Kuulkers, Nicola Masetti, Enrico Montanari, Luciano Nicastro, Mauro Orlandini, and Eliana Palazzi (3 November 2000) Science290 (5493), 953.
[DOI: 10.1126/science.290.5493.953] |Abstract »|Full Text »|PDF »
REPORTS
L. Piro, G. Garmire, M. Garcia, G. Stratta, E. Costa, M. Feroci, P. Mészáros, M. Vietri, H. Bradt, D. Frail, F. Frontera, J. Halpern, J. Heise, K. Hurley, N. Kawai, R. M. Kippen, F. Marshall, T. Murakami, V. V. Sokolov, T. Takeshima, and A. Yoshida (3 November 2000) Science290 (5493), 955.
[DOI: 10.1126/science.290.5493.955] |Abstract »|Full Text »|PDF »
