Probes and Tests of Strong-Field Gravity with Observations in the Electromagnetic Spectrum

Details Probes and Tests of Strong-Field Gravity with Observations in the Electromagnetic Spectrum Probes and Tests of Strong-Field Gravity with Observations in the Electromagnetic Spectrum

2008-06-09

arxiv.org/abs/0806.1531v1

Astronomy and Astrophysics

Astrophysics

58 pages, review article for Living Reviews in Relativity

Scientific paper

Neutron stars and black holes are the astrophysical systems with the strongest gravitational fields in the universe. In this article, I review the prospect of probing with observations of such compact objects some of the most intriguing General Relativistic predictions in the strong-field regime: the absence of stable circular orbits near a compact object and the presence of event horizons around black-hole singularities. I discuss the need for a theoretical framework within which future experiments will provide detailed, quantitative tests of gravity theories. Finally, I summarize the constraints imposed by current observations of neutron stars on potential deviations from General Relativity.

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