Dresden 2000 – wissenschaftliches Programm
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GR: Gravitation und Relativitätstheorie
GR 4: Schwarze Löcher, Astrophysik, Kosmologie
GR 4.1: Vortrag
Donnerstag, 23. März 2000, 14:15–14:35, W B321
Gravitating dyons and dyonic non-abelian black holes — •Betti Hartmann1, Jutta Kunz1, and Yves Brihaye2 — 1Fachbereich Physik, Uni Oldenburg, Postfach 2503, 26111 Oldenburg — 2Faculte des Sciences, Universite de Mons, B-7000 Mons, Belgium
In Einstein-Yang-Mills-Higgs theory there exist static spherically symmetric gravitating dyon solutions and dyonic black holes. The gravitating dyon solutions share many features with the gravitating monopole solutions. In particular, gravitating dyon solutions exist up to a maximal dimensionless coupling constant α, which is proportional to the ratio of vector meson mass and Planck mass. The domain of existence of the dyonic non-abelian black holes, which provide counterexamples to the "no-hair conjecture", is limited with respect to both the horizon radius and α. Besides the fundamental dyonic non-abelian black holes, there exist radially excited dyonic non-abelian black holes and globally regular gravitating dyons.