Strong Gravity

The group's research on strong gravity involves finding analytical and numerical solutions of Einstein's theory of general relativity, and many of its extensions, either in vacuum or coupled to various types of matter. For our latest developments/activities in this area, please see the listing at the end of this article.

The prime examples of (relativistic) strong gravitational systems are Black Holes. They are truly unifying objects of all physics. The understanding of their formation and dynamics requires the laws of all four fundamental forces, and their physics is relevant not only for astrophysics and cosmology but for a variety of topics within high energy physics.

See here a movie made by the COST action `Black holes in a violent universe', in which our group participates, for a visual overview of different types of black holes.


Latest Strong Gravity Publications

Embedding Gauss–Bonnet Scalarization Models in Higher Dimensional Topological Theories, Carlos Herdeiro, Eugen Radu and D. H. Tchrakian; Symmetry 13(2021) 590, arXiv:2104.01547 [gr-qc].

Publication type
Regular Articles
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Multi-field, multi-frequency bosonic stars and a stabilization mechanism, Nicolas Sanchis-Gual,  Fabrizio Di Giovanni,  Carlos Herdeiro,  Eugen Radu,  José A. Font; arXiv:2103.12136 [gr-qc].

Publication type
Regular Articles
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De-singularizing the extremal GMGHS black hole via higher derivatives corrections, Carlos Herdeiro, Eugen Radu, Kunihito Uzawa; arXiv:2103.00884 [hep-th].

Publication type
Regular Articles
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Mistaken identity: can different black holes cast the same shadow?, Haroldo C. D. Lima Junior, Luís C. B. Crispino, Pedro V. P. Cunha, Carlos A. R. Herdeiro; Accepted in Phys. Rev. D (2021), arXiv:2102.07034 [gr-qc].

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Regular Articles
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Black holes, stationary clouds and magnetic fields, Nuno M. Santos, Carlos A. R. Herdeiro; Phys. Lett. B815 (2021) 136142, arXiv:2102.04989 [gr-qc].

Publication type
Regular Articles
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Latest Strong Gravity News & Events

Boson stars and their instabilities

Speaker
Nils Siemonsen (Perimeter Institute of Theoretical Physics)
Event date
Venue
online (only)
Event type

Particle physics models of dark matter, and extensions to the Standard Model, predict the existence of a large abundance of light scalar degrees of freedom in the universe. From a diffuse cloud, these can form into rotating clumps of energy - boson stars.