This picture depicts a swirling pool of hot gas around what is estimated to be a black hole in the center of this massive beast. We had just recently covered the topic of black holes and their predecessor: the neutron star. A neutron star is formed when the electron-degeneracy pressure is overcome by the force of gravity which occurs on the quantum level. This particular object, labeled GRO J1655-40 displays a flickering at a rate of 450 times per second which is caused by accretion discs surrounding the centered black hole.
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