Black Star or Astrophysical Black Hole - AstrophysicsReportar como inadecuado

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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 inastrophysics should rather be called -black stars- and they not only do nothave event horizons but actually can be the source of spectacular gamma raybursts. In this short essay no flimsier than the original preprint where theseextravagant claims appeared I demonstrate that these ill-considered claims areclearly wrong. Yet they present a good occasion to reflect on some well knownbut little discussed conceptual difficulties which arise when applyingrelativistic terminology in an astrophysical context.

Autor: K. Petrovay


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