News From the Field
Neutron Stars May Be Too Weak to Power Some Gamma-ray Bursts
November 4, 2010
Long-duration gamma-ray bursts flash across the universe to signal the collapse of a massive star, but this collapsar model predicts either a neutron star or a black hole is left behind. New calculations of the energy released by gamma-ray bursts find it too large to be powered by a neutron star, even highly magnetized, spinning magnetars. Thus, University of California, Berkeley, astronomers conclude, the likely power source is a black hole.
University of California, Berkeley
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