2014年1月3日 Science

nero1981

2014年1月3日 Science
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COVER Artist's conception of gamma-ray burst (GRB) 130427A, one of the # K; h' `3 r/ i; o( l
brightest and longest-lived GRBs observed to date. GRBs such as this one occur 8 o" ^) F# e2 W" L3 V# r% B
when the core of a massive star runs out of nuclear fuel, collapses, and forms a 6 J( ]4 `3 r  q0 ]' O9 b5 ?( n4 p
black hole that drives a powerful jet of plasma traveling close to the speed of 3 T* B. G* h  @; ]4 H" ?& _
light. See pages 34, 38, 42, 48, and 51. Image: 7 m/ f, ?$ G1 m4 Q& K- X
NASA/Fermi and Sonoma State University/Aurore Simonnet 6 h4 I- ^8 K. f

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