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

Two boson stars in equilibrium, P. Cunha, C. Herdeiro, E. Radu, and Y. Shnir; Accepted in Phys. Rev. D (2022), arXiv:2210.01833 [gr-qc].

Publication type
Regular Articles
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Kerr black holes with synchronised Proca hair: lensing, shadows and EHT constraints, I. Sengo, P. V. P. Cunha, C. A. R. Herdeiro, E. Radu; Accepted in JCAP (2022), arXiv:2209.06237 [gr-qc].

Publication type
Regular Articles
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Impact of the wave-like nature of Proca stars on their gravitational-wave emission, N. Sanchis-Gual, J. C. Bustillo, C. Herdeiro, E. Radu, J. A. Font, S. H. W. Leong, and A. Torres-Forné; Phys. Rev. D 106 (2022) 124011, arXiv:2208.11717 [gr-qc].

Publication type
Regular Articles
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Null and timelike circular orbits from equivalent 2D metrics, P. V. P. Cunha, C. A. R. Herdeiro and J. P. A. Novo;  Class. Quan. Grav. 39 (2022) 225007, arXiv:2207.14506 [gr-qc].

Publication type
Regular Articles
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Exotic compact objects and the fate of the light-ring instability, P. V. P. Cunha, C. A. R. Herdeiro, E. Radu and N. Sanchis-Gual; Accepted in Phys. Rev. Lett. (2022), arXiv:2207.13713 [gr-qc].

Publication type
Regular Articles
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Latest Strong Gravity News & Events

TBA

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Speaker
Alberto Saa (IMECC - UNICAMP)
Event date
Venue
Only on campus (Sala Sousa Pinto)
Event type

Questions on Quantum Gravity

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Speaker
Renate Loll (Radboud University)
Event date
Venue
Online (only)
Event type

I will sketch motivations, ambitions and challenges of quantum gravity, how we have got to where we are, and discuss promising current and future direction, focusing on nonperturbative quantum field-theoretic approaches. No expert knowledge on quantum gravity will be required.