Rapid X-ray flaring from the direction of the supermassive black hole at the Galactic Centre

  title={Rapid X-ray flaring from the direction of the supermassive black hole at the Galactic Centre},
  author={Frederick K. Baganoff and Marshall W. Bautz and W. N. Brandt and G. Chartas and Eric D. Feigelson and Gordon P. Garmire and Yoji Maeda and Mark R. Morris and George R. Ricker and Leisa K. Townsley and Fabian Walter},
The nuclei of most galaxies are now believed to harbour supermassive black holes. The motions of stars in the central few light years of our Milky Way Galaxy indicate the presence of a dark object with a mass of about 2.6 × 106 solar masses (refs 2, 3). This object is spatially coincident with the compact radio source Sagittarius A* (Sgr A*) at the dynamical centre of the Galaxy, and the radio emission is thought to be powered by the gravitational potential energy released by matter as it… 

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