caa a22 4500 46788692X CHVBK 20180406152737.0 cr unu---uuuuu 170328e20060901xx s 000 0 eng 10.1007/s10714-006-0321-2 doi (NATIONALLICENCE)springer-10.1007/s10714-006-0321-2 Matching radiation-dominated and matter-dominated Einstein-de Sitter universes and an application for primordial black holes in evolving cosmological backgrounds [Elektronische Daten] [M. McClure, C. Dyer] By matching across a surface of constant time, it is demonstrated that the spacetime for a radiation-dominated Einstein-de Sitter universe can be directly matched to the spacetime for a matter-dominated Einstein-de Sitter universe. Thus, this can serve as a model of a universe filled with radiation that suddenly is converted to matter and antimatter, or a universe filled with matter and antimatter that suddenly annihilates to leave radiation. This matching is shown to hold for asymptotically Einstein-de Sitter cosmological black hole spacetimes, yielding simplistic models of primordial black holes that evolve between being in radiation-dominated universes and matter-dominated universes. Springer Science+Business Media, Inc., 2006 Einstein-de Sitter universes nationallicence Spacetime matchings nationallicence Cosmological black holes nationallicence Primordial black holes nationallicence McClure M. Astronomy & Astrophysics, University of Toronto, 60 Saint George St, M5S 3H8, Toronto, ON, Canada aut Dyer C. Astronomy & Astrophysics, University of Toronto at Scarborough, 1265 Military Trail, M1C 1A4, Toronto, ON, Canada aut General Relativity and Gravitation Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 38/9(2006-09-01), 1347-1354 0001-7701 38:9<1347 2006 38 10714 https://doi.org/10.1007/s10714-006-0321-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-006-0321-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- McClure M. Astronomy & Astrophysics, University of Toronto, 60 Saint George St, M5S 3H8, Toronto, ON, Canada aut NATIONALLICENCE 700 1- Dyer C. Astronomy & Astrophysics, University of Toronto at Scarborough, 1265 Military Trail, M1C 1A4, Toronto, ON, Canada aut NATIONALLICENCE 773 0- General Relativity and Gravitation Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 38/9(2006-09-01), 1347-1354 0001-7701 38:9<1347 2006 38 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer