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

Dirac perturbations on Schwarzschild Anti-de-Sitter spacetimes: Generic boundary conditions and new quasi-normal modes, Mengjie Wang, Carlos Herdeiro, Jiliang Jing;  Accepted in Phys. Rev. D (2017)arXiv:1710.10461 [gr-qc].

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Regular Articles
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Superradiance in the BTZ black hole with Robin boundary conditions, Claudio Dappiaggi, Hugo R. C. Ferreira, Carlos A. R. Herdeiro; arXiv:1710.08039 [gr-qc].

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Regular Articles
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Skyrmions, Skyrme stars and black holes with Skyrme hair in five spacetime dimension, Yves Brihaye, Carlos Herdeiro, Eugen Radu, D. H. Tchrakian;  JHEP 11 (2017) 037; arXiv:1710.03833 [gr-qc].

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Regular Articles
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Lensing and dynamics of ultra-compact bosonic stars, Pedro V. P. Cunha, José A. Font, Carlos Herdeiro, Nicolas Sanchis-Gual, Miguel Zilhão; Accepted in Phys. Rev. D (2017), arXiv:1709.06118 [gr-qc].

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Regular Articles
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Black hole lasers powered by axion superradiant instabilities, João G. Rosa, Thomas K. Kephart; arXiv:1709.06581 [gr-qc].

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Regular Articles
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Latest Strong Gravity News & Events

A no-go theorem for exotic alternatives to black holes as LIGO/Virgo sources

Five of the ground-breaking gravitational wave detections by the LIGO/Virgo collaboration have been interpreted as black hole collisions forming a more massive black hole. It is hard to demonstrate conclusively that these objects are indeed black holes, and there is a lively debate on the intriguing possibility that other, more exotic alternatives could explain the observations. In an article to appear in Physical Review Letters, Gr@v members P.