Unruh, W.G. (2001) Black Holes, Dumb Holes, and Entropy. In: Callender, C., Ed., Physics Meets Philosophy at the Planck Scale, Cambridge University Press, 152-173, Eq. 7.6.
https://doi.org/10.1017/CBO9780511612909.008

has been cited by the following article:

• TITLE: Equivalence between a Gravity Field and an Unruh Acceleration Temperature Field as a Possible Clue to “Dark Matter”

  AUTHORS: Eugene Terry Tatum, U. V. S. Seshavatharam

  KEYWORDS: Dark Matter, Unruh Effect, Unruh Temperature, Supermassive Black Holes, Galactic Rotation Curves, Equivalence Principle, Hawking Radiation

  JOURNAL NAME: Journal of Modern Physics, Vol.9 No.8, July 18, 2018

  ABSTRACT: Einstein’s equivalence principle allows one to compare the magnitudes of a gravitational acceleration field with the magnitudes of a field of Unruh acceleration temperatures. The validity of such a comparison is demonstrated by using it to derive the effective Hawking black body radiation at a Schwarzschild black hole horizon. One can then extend the black hole thought experiment to a Hawking-Unruh temperature equation expressed in terms of the Schwarzschild radius. This follows an inverse radius law rather than an inverse radius-squared law. Following a brief discussion of current theoretical failures to explain galactic rotation curves, the Unruh acceleration temperature equations are brought together to show how a rotating supermassive black hole galactic system should follow an inverse radius rule of centripetal gravitational force and centripetal acceleration. This result appears to indicate that galactic observations currently attributed to dark matter may in part be attributed to classical Newtonian dynamics superimposed on a relativistic rotating system powered by a supermassive black hole.