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

The scalarised Schwarzschild-NUT spacetime, Yves Brihaye, Carlos Herdeiro, Eugen Radu; Accepted in Phys. Lett. B (2018), arXiv:1810.09560 [gr-qc].

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Regular Articles
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Synchronized stationary clouds in a static fluid, Carolina L. Benone, Luís C. B. Crispino, Carlos A. R. Herdeiro, Maurício Richartz; Phys. Lett. B 786 (2018) 442-447, arXiv:1809.03952 [gr-qc].

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Regular Articles
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Isolated black holes without Z2 isometry, Pedro V. P. Cunha, Carlos A. R. Herdeiro, Eugen Radu; Accepted in Phys. Rev. D (2018), arXiv:1808.06692 [gr-qc].

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Regular Articles
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Skyrmions around Kerr black holes and spinning BHs with Skyrme hair; C. Herdeiro, I. Perapechka, E. Radu, Ya. Shnir; JHEP 10 (2018) 119, arXiv:1808.05388 [gr-qc].

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Regular Articles
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Head-on collisions of Proca stars, Nicholas Sanchis-Gual, Carlos Herdeiro, José A. Font, Eugen Radu; arXiv:1806.07779 [gr-qc].

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Regular Articles
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Latest Strong Gravity News & Events

A super-nova remnant in Andromeda galaxy

Gr@v member Valério Ribeiro was part of an international team of researchers studying thermonuclear eruptions in the Andromeda galaxy. The team published, in Nature magazine, the discovery of a super-nova remnant which is bigger than most supernova remnants. They found that the super-nova remnant was the consequence of yearly repeated eruptions over millions of years. Few of these systems are known in the galaxy due to the fact that we suffer from dust obscuration.

2018 Alberto prize awarded to João Rosa

Gr@v member João Rosa was one of the recipients of the 2018 Alberto prize, awarded by the Portuguese Society of Relativity and Gravitation (SPRG). The prize was given for his work on the phenomenon of superradiance and its physical and astrophysical implications. The prize was shared by Richard Brito, a researcher of the Max Planck Institute for Gravitational Physics, in Berlin, Germany. The prize was delivered at the General Assembly of the SPRG, on 19th December 2018, during the XI Black Holes Workshop.

CAPES Honorable Mention for Carolina Benone's Thesis

The Brazilian Funding Agency, CAPES, presented Carolina Benone's PhD Thesis with an Honorable Mention. This award results from a Brazilian national contest for the PhD theses defended in 2017. Carolina's thesis was supervised by Professor Luis Carlos Crispino from Universidade Federal do Pará (UFPA), Brazil, and includes research performed with Gr@v members, as a result of two long term visits of Carolina's to Gr@v during her PhD.  Hearty congratulations Carolina!

Carlos Herdeiro becomes Associate Professor at IST-Lisbon

From October 2018 onwards, Carlos Herdeiro, one of Gr@v's founding members, became an Associate Professor at the Physics Department of IST-Lisbon. The photo shows group members and Yves Brihaye, visiting from Mons University, enjoying a wonderful "parrilhada de peixe", by the seaside, a few kilometers from the Aveiro Campus, on September 28th 2018.