"Black Star" or Astrophysical Black Hole?
Abstract
Recently wide publicity has been given to a claim by T. Vachaspati that "black holes do not exist", that the objects known as black holes in astrophysics should rather be called "black stars" and they not only do not have event horizons but actually can be the source of spectacular gamma ray bursts. In this short essay (no flimsier than the original preprint where these extravagant claims appeared) I demonstrate that these ill-considered claims are clearly wrong. Yet they present a good occasion to reflect on some well known but little discussed conceptual difficulties which arise when applying relativistic terminology in an astrophysical context.
Keywords
Cite
@article{arxiv.0707.2450,
title = {"Black Star" or Astrophysical Black Hole?},
author = {K. Petrovay},
journal= {arXiv preprint arXiv:0707.2450},
year = {2009}
}
Comments
Poster presented at "Compact Objects" meeting in Hunagshan, China, 2-7 July 2007. To be published in the AIP Conference Proceeding series