Wednesday, April 19 2017

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Of the several thousand rotation-powered pulsars that have been discovered by radio telescopes over the past forty years, only a handful were known to emit gamma-ray pulsations before the launch in June, 2008 of the Fermi Gamma-Ray Space Telescope. After almost six years of operation, over 200 gamma-ray pulsars have been detected and several new populations have been discovered. Millisecond pulsars have been confirmed as powerful sources of gamma-ray emission, and a whole population of these objects is seen with Fermi both in the Galactic plane and in globular clusters.