Hyper-Entropic Gravitational Fireballs (Grireballs) with Firewalls
arXiv:1211.6734 · doi:10.1088/1475-7516/2013/04/037
Abstract
Recently there has been much discussion as to whether old black holes have firewalls at their surfaces that would destroy infalling observers. Though I suspect that a proper handling of nonlocality in quantum gravity may show that firewalls do not exist, it is interesting to consider an extension of the firewall idea to what seems to be the logically possible concept of hyper-entropic gravitational hot objects (gravitational fireballs or grireballs for short) that have more entropy than ordinary black holes of the same mass. Here some properties of such grireballs are discussed under various assumptions, such as assuming that their radii and entropies both go as powers of their masses as the one independent parameter, or assuming that their radii depend on both their masses and their entropies as two independent parameters.
24 pages, LaTeX, revised slightly to respond to referee's comments, to add references, and to include WMAP 9-year and Planck data
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