Galactic bulge preferred over dark matter for the Galactic centre gamma-ray excess
An anomalous gamma-ray excess emission has been found in the Fermi Large Area Telescope data 1 covering the centre of the Galaxy 2,3 . Several theories have been proposed for this 'Galactic centre excess'. They include self-annihilation of dark-matter particles 4, an unresolved population of millisecond pulsars 5, an unresolved population of young pulsars 6, or a series of burst events 7 . Here, we report on an analysis that exploits hydrodynamical modelling to register the position of...[Show more]
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