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RESEARCH PRODUCT
Cosmon Lumps and Horizonless Black Holes
Matthias NeubertChristof WetterichTimm Krügersubject
High Energy Physics - TheoryPhysicsNuclear and High Energy PhysicsAstrophysics (astro-ph)FOS: Physical sciencesScalar potentialAstrophysicssymbols.namesakeGeneral Relativity and Quantum CosmologyClassical mechanicsSingularityHigh Energy Physics - Theory (hep-th)symbolsSchwarzschild metricGravitational singularityCircular symmetryEinsteinSchwarzschild radiusQuintessencedescription
We investigate non-linear, spherically symmetric solutions to the coupled system of a quintessence field and Einstein gravity. In the presence of a scalar potential, we find regular solutions that to an outside observer very closely resemble Schwarzschild black holes. However, these cosmon lumps have neither a horizon nor a central singularity. A stability analysis reveals that our static solutions are dynamically unstable. It remains an open question whether analogous stable solutions exist.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-05-01 |