It turned out that the observed width of the jet was significantly wider than what was expected in the currently favoured models where the jet is launched from the
black hole's ergosphere — an area of space
right next to a spinning
black hole where space itself is dragged to a circling motion
around the
hole», explains Professor Gabriele Giovannini from Italian National Institute for Astrophysics, the lead author of the paper published in Nature Astronomy yesterday.