Black holes also have a corona, but astronomers have struggled to completely understand its shape and how it relates to the accretion disk of material that surrounds actively feeding black holes ...

This finding suggests that noncommutative geometry may inherently encode quantum effects in curved spacetime, providing a new perspective on black hole thermodynamics. Another line of inquiry has ...

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2). These models can be fit to X-ray data to learn about the changing geometry of the X-ray continuum source. Fig. 1: A computer visualisation of the intensity of X-ray emission from an accretion disk ...

"They must have formed in large part from material falling in, growing the black hole smoothly and speeding up its rotation." Despite being cosmic monsters that shape the entire galaxies around ...