Exciting workshop on numerical relativity


Ellery Ames and Håkan Andréasson both seem very pleased with our new results, but pointing at different branches?

It’s always exciting when I get together with my colleagues Håkan Andréasson and Ellery Ames, and good things tend to happen. Our work could be summarized as solving the Einstein-Vlasov equations and trying to find interesting things, such as black holes, geons and cosmic strings. Previously, we found some interesting galaxies, in particular the Hoag-like object depicted below.

A Hoag-like galaxy computed by solving the Einstein-Vlasov Equations. The image shows an isosurface of the computed density. For details see http://iopscience.iop.org/article/10.1088/0264-9381/33/15/155008 [Ames, Andréasson, Logg 2016].
Results will be published soon but I can already reveal that we found at least a couple of very exciting features – that I will describe in more detail later when we have verified our findings.



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logg Written by:

His research interests are adaptive finite element methods, high-level automating software systems for solution of PDE, domain-specific languages and compilers in scientific computing, augmented and virtual reality, and applications in biomedicine, general relativity, architecture, and geoinformation; in particular the combination of modeling, simulation and visualization to create Digital Twins of physical systems. Logg is Director of the Digital Twin Cities Centre at Chalmers, a Vinnova Competence Centre devoted to the study and development of the Digital Twin concept for city modeling and simulation. Logg is co-founder and initial developer of the FEniCS Project, a leading open-source software for automated solution of PDE. He works part-time as scientific advisor to Fraunhofer-Chalmers Centre.

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