arXiv subjects
Publications and source records attributed to Miquel Pinyol Ribas.
In this paper we present a simple but non-simplistic model of gravitational collapse with thermal emission of pre-Hawking radiation. We apply Einstein equations to a time-dependant spherically symmetric metric and an ultrarelativistic stress-energy tensor. In our model, particles either radially approach the center of the star as collapsing matter, or radially flee from it.
Black Hole Nonformation was suggested in 2006 by Vachaspati, Stojkovic and Krauss as a sensible solution to the paradox of information, as deduced from calculations in the semiclassical theory of Gravitation. Our own results in the context of classical General Relativity (with the addition of several thermodynamic argumentations) led us to an equivalent statement: collapsing bodies emit their complete amount of mass and energy as radiation before the formation of any event horizon. In this paper, we submit the metric we rendered to the test of Einstein Field Equations, and we propose some modifications to extend our solutions to more general situations, as the initial moments of collapse and electrically charged collapses, as well as we effectuate some considerations about rotating collapses.
The established concept of black hole emerged from several results founded on Einstein's General Theory of Relativity. In this article, the relationship between these results is analyzed, and it is pointed out how, in spite of being individually correct, the sum of all them do not actually determine the existence of black holes. Some logical incompatibilities in the standard Black Hole model are put into evidence, and the alternative scheme of the Never-Stationary Gravitational Collapse is defended. To illustrate the essence of the new paradigm, a simple but conceptually complete toy model is worked out and a qualitatively suitable metric for Never-Stationary Gravitational Collapse is presented.