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arXiv · 2106.06553

NRPyCritCol & SFcollapse1D: an open-source, user-friendly toolkit to study critical phenomena

Leonardo R. Werneck·Zachariah B. Etienne·Elcio Abdalla·Bertha Cuadros-Melgar·C. E. Pellicer
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Abstract

We present a new open-source, user-friendly toolkit of two codes$-$SFcollapse1D and NRPyCritCol$-$to study critical phenomena in the context of gravitational collapse. SFcollapse1D is a C/C++ tool designed to solve the problem of gravitational collapse of massless, spherically symmetric scalar fields with the ADM formalism in spherical-like coordinates. NRPyCritColis a collection of Python modules that leverage the NRPy+ infrastructure to generate a highly optimized C-code for evolving massless scalar fields within a covariant BSSN formalism. The toolkit was developed with user-friendliness and code efficiency in mind, enabling the exploration of critical phenomena with consumer-grade computers. We present a study of critical phenomena from the collapse of massless scalar fields in spherical symmetry, using only these two codes and a laptop computer.

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Leonardo R. Werneck, Zachariah B. Etienne, Elcio Abdalla, Bertha Cuadros-Melgar, C. E. Pellicer. 2021-06-11. NRPyCritCol & SFcollapse1D: an open-source, user-friendly toolkit to study critical phenomena. https://doi.org/10.1088/1361-6382%2Fac33bf

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