Strong Gravity News & Events

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On multi black hole systems in 5 dimensions

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Speaker
Cristian Stelea
Event date
Venue
GAP room
Event type

Abstract: In this talk I review a recent solution generating technique based on the symmetries of the dimensionally reduced Lagrangian of the Einstein-Maxwell-dilaton system in five dimensions.

Gravity=(gauge)^2 for soft gravitons

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Speaker
Miguel A. Vázquez-Mozo (U. Salamanca)
Event date
Venue
GAP room
Event type
Abstract: Recently it has been realized that subleading corrections to soft theorems in gauge theories and gravity are related to the asymptotic symmetries of the theory at null infinity. In this talk I will discuss how in the case of the soft graviton theorem these corrections, when written in terms of kinematic invariants, exhibit a double copy structure for the emitted graviton. This result holds also in the Gribov limit, where emitted gravitons are not necessarily soft.

Data for Kerr BHs with scalar hair

Here, the numerical data described in the paper "Construction and physical properties of Kerr black holes with scalar hair", arXiv:1501.04319 [gr-qc], is made available for public use.

This paper is an invited contribution to the Focus Issue on "Black holes and fundamental fields" to appear in Classical and Quantum Gravity, Edited by Paolo Pani and Helvi Witek.

Sociedade Portuguesa de Relatividade e Gravitação (SPRG)

2015 marks the centennial of the General Theory of Relativity (GR), presented by Albert Einstein in 1915. Motivated by this celebration, understanding that GR is an important part of the scientific world heritage and recognizing the growing international influence of Portuguese researchers working in this area, the "Portuguese Society of Relativity and Gravitation" (SPRG) was formally established in 2015.