English

Bulk Motion Comptonization - a sure sign of Black Holes

Astrophysics 2007-05-23 v1

Abstract

Bulk motion Comptonization utilizes properties of both matter and radiation close to the horizon of a black hole. Computation with these considerations produce hard tails of energy spectral slope 1.51.7\sim 1.5-1.7. These are the most direct evidence of the horizon of a black hole. We argue that even in presence of winds and outflows this property is not likely to change as winds are negligible in soft states.

Keywords

Cite

@article{arxiv.astro-ph/0012531,
  title  = {Bulk Motion Comptonization - a sure sign of Black Holes},
  author = {Sandip K. Chakrabarti and Indranil Chattopadhyay},
  journal= {arXiv preprint arXiv:astro-ph/0012531},
  year   = {2007}
}

Comments

World Scientific Style. Proceedings of the 9th Marcel Grossman Meeting in Rome (World Scientific, to appear)