Redefining the Event Horizon
Shiv Raj Aryan
Kashipur, Samastipur, Bihar, India.
DOI: 10.4236/ijaa.2013.34045   PDF   HTML   XML   5,459 Downloads   8,519 Views  


Presented herein is a new and independent derivation of equation for the radius of Black Holes, i.e. the event horizon of black holes. The equation has been derived by formulating the relativistic equation of escape velocity derived from the relativistic equations for gravitational potential and kinetic energy. Based upon that, it is now shown that the actual size of a black hole, as determined by its event horizon, is exactly half the value predicted by the escape velocity equation used in the Newtonian mechanics. It proves that the actual radius of a black hole is exactly one half of the Schwarzschild radius.

Share and Cite:

S. Aryan, "Redefining the Event Horizon," International Journal of Astronomy and Astrophysics, Vol. 3 No. 4, 2013, pp. 392-394. doi: 10.4236/ijaa.2013.34045.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] A. Einstein, “On the Influence of Gravitation on the Propagation of Light,” Annalen der Physik, Vol. 340, No. 10, 1911, pp. 898-908.
[2] I. Newton, “The Principia: Mathematical Principles of Natural Philosophy,” University of California Press, Berkeley, 1999.
[3] H. A. Lorentz, “Electromagnetic Phenomena in a System Moving with Any Velocity Smaller than That of Light,” Proceedings of the Royal Netherlands Academy of Arts and Sciences, Vol. 6, 1904, pp. 809-831.

Copyright © 2021 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.