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How Does Your Black Hole Grow?

Like some unstoppable evil in a horror movie, a black hole constantly feeds and grows. Now, 30 years after that discovery, researchers can finally describe this inexorable growth quantitatively. A team publishing in the 23 December 2002 print issue of PRL derives an explicit relationship between the size of a black hole and the energy it has absorbed. Such knowledge may aid in computer simulations of black hole mergers, understanding gravitational wave physics, and other astrophysical studies. (Text courtesy of Physical Review Focus)

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