2001/11/21 by Darryl Leiter, D. Leiter, Leiter, Darryl +3 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysics (astro-ph) #Cosmology and Gravitation Theories #Earth Systems and Cosmic Evolution #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Relativity and Gravitational Theory #astro-ph #gr-qc
paper · pdf · doi:10.48550/arxiv.astro-ph/0111421
Accepted in Foundations of Physics Letters for February 2003 publication. 30 pages, no figures, pdf format. (1) FSTC Charlottesville, VA, (2) Physics (Department), Southwestern Oklahoma State (University), Weatherford, OK. Analysis in previous paper is extended to show that Magnetospheric Eternally Collapsing Objects (MECO) exist, within the framework of General Relativity, which can replace Black Holes as the central engines of active galactic nuclei
openalex publication_date 2001/11/21 · arxiv created 2002/12/11 · openalex created_date 2022/10/01 · openalex updated_date 2026/07/28
It has been recently shown (Mitra,- astro-ph/9910408, astro-ph/0207056) that\nthe timelike spherical collapse of a radiating, physical fluid in General\nRelativity, as seen by an interior co-moving observer at rest in the physical\nfluid, does not permit formation of ``trapped surfaces''. This followed from\nthe fact that the formation of a trapped surface in a physical fluid would\ncause the timelike world lines of the collapsing fluid to become null at the\nwould be trapped surface, thus violating the Principle of Equivalence in\nGeneral Theory of Relativity. In this paper we generalize and extend this\nresult by studying the problem from the point of view of the exterior Vaidya\nmetric of a collapsing radiating fluid as seen by an exterior stationary\nobserver, and find that the "no trapped surface condition" becomes g00 > 0\nconsistent with that obtained for the interior co-moving metric. Since we have\nshown that the Principle of Equivalence prevents trapped surfaces from being\nformed in collapsing, radiating objects, then true event horizons cannot exist\nand Galactic Black Hole Candidates (GBHC) must have physically observable\nintrinsic magnetic dipole moments. Because of this fact it follows (Robertson\nand Leiter - astro-ph/0102381, astro-ph/0208333) that GBHC can be consistently\ndescribed, within the framework of General Relativity, in terms of a\nmagneto-spheric eternally collapsing objects (MECO) without true event\nhorizons.\n