Dear All, I hope you are doing well during the COVID19 pandemic.
I want to solve the gr-hydro equations in 3+1 formalism and simulate the black hole formation in the *cosmological background *(primordial black holes in the radiation dominated universe). I was wondering to ask if it is *possible to do that using the Einstein Toolkit (or potentially the NRPy+)* and if anyone could guide me with this problem.
I guess that the thorns provided with the ET are mostly for the asymptotically flat space-times (if not, correct me please) and I am not sure if it is straightforward to use them considering the FRW metric.
The formulation I would like to use is based on Shibata and Sasaki's work in 1999 (http://arxiv.org/abs/gr-qc/9905064v1).
Thank you for your time. Regards, Hassan