Hello all, There's also David Boyer's TOVola TOV initial data thorn (scheduled to be included in the November release of the ET), which may work.
I have added David Boyer, its author, would you be able to comment on this? Yours, ROland > Hi, > > there is another TOV solver available in the "reprimand" thorn. It only > solves the NS equations, however, but does not set up any initial data. > It provides ordinary C++ functions for EOS handling and TOV solving, > but there is no cactus interface. To set up initial data, you would > need to write a small thorn or replace the TOV solver part in the > available TOVSolver thorn with calls to reprimand. > The thorn is a based on the standalone C++ library also named reprimand > (which also has a python interface that can be pip-installed). > https://urldefense.com/v3/__https://github.com/wokast/RePrimAnd__;!!DZ3fjg!4WBu1NbiMkSGYMbSU8W8qB8IVFzdObuye5dNzEsoJwj9G2Q8ePTVScADQ-LAVcLuS83gGIfHME_Jd__wJwI$ > > It is documented here > https://urldefense.com/v3/__https://wokast.github.io/RePrimAnd/index.html__;!!DZ3fjg!4WBu1NbiMkSGYMbSU8W8qB8IVFzdObuye5dNzEsoJwj9G2Q8ePTVScADQ-LAVcLuS83gGIfHME_JdzDq5BM$ > > > It might be well suited for your special use case since it is designed > for dealing also with discontinuous EOS, as described in this article: > https://urldefense.com/v3/__https://arxiv.org/abs/2404.11346__;!!DZ3fjg!4WBu1NbiMkSGYMbSU8W8qB8IVFzdObuye5dNzEsoJwj9G2Q8ePTVScADQ-LAVcLuS83gGIfHME_JE0V6tP0$ > > > > Cheers, > Wolfgang. > > On Thu, 2024-10-31 at 20:58 +0000, CJ Osakwe wrote: > > > > Hello, > > > > > > I am trying to set up a stable hybrid star (with a quark matter core > > and hadronic crust, each with their own equation of state) in the > > Einstein Toolkit. My initial approach was to adapt the TOVSolver > > thorn to achieve this, but the code is removing the density > > discontinuity at the hadronic-quark matter interface when it > > interpolates from 1D to 3D. As well the discontinuity doesn't seem to > > be reflected in the pressure anyway. I'm wondering if there is a > > thorn that is better suited for setting up a stable hybrid star? > > > > > > Cheers, > > CJ Osakwe > > PhD candidate, Department of Physics and Astronomy > > University of Calgary > > > > > > _______________________________________________ > > Users mailing list > > Users@einsteintoolkit.org > > https://urldefense.com/v3/__http://lists.einsteintoolkit.org/mailman/listinfo/users__;!!DZ3fjg!4WBu1NbiMkSGYMbSU8W8qB8IVFzdObuye5dNzEsoJwj9G2Q8ePTVScADQ-LAVcLuS83gGIfHME_JHsjpI-0$ > > > > _______________________________________________ > Users mailing list > Users@einsteintoolkit.org > https://urldefense.com/v3/__http://lists.einsteintoolkit.org/mailman/listinfo/users__;!!DZ3fjg!4WBu1NbiMkSGYMbSU8W8qB8IVFzdObuye5dNzEsoJwj9G2Q8ePTVScADQ-LAVcLuS83gGIfHME_JHsjpI-0$ > Yours, Roland -- My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://pgp.mit.edu .
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