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2014年1月3日 Science
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COVER Artist's conception of gamma-ray burst (GRB) 130427A, one of the
, G* E6 }# {$ q, g$ }. D4 S8 ~brightest and longest-lived GRBs observed to date. GRBs such as this one occur
3 D: I" I6 [1 Z' i; @" z; Q% y% B5 Mwhen the core of a massive star runs out of nuclear fuel, collapses, and forms a
U3 Q2 \, ]2 s; Pblack hole that drives a powerful jet of plasma traveling close to the speed of / r3 u# Y, s: @- ~' }9 s/ T
light. See pages 34, 38, 42, 48, and 51. Image:
0 [. l; W3 ]" d$ m) [NASA/Fermi and Sonoma State University/Aurore Simonnet ' p( _8 L! r+ V2 L: o
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