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[ascl:1911.001] PLAN: A Clump-finder for Planetesimal Formation Simulations

PLAN (PLanetesimal ANalyzer) identifies and characterizes planetesimals produced in numerical simulations of the Streaming Instability that includes particle self-gravity with code Athena (ascl:1010.014). PLAN works with the 3D particle output of Athena and finds gravitationally bound clumps robustly and efficiently. PLAN — written in C++ with OpenMP/MPI — is massively parallelized, memory-efficient, and scalable to analyze billions of particles and multiple snapshots simultaneously. The approach of PLAN is based on the dark matter halo finder HOP (ascl:1102.019), but with many customizations for planetesimal formation. PLAN can be easily adapted to analyze other object formation simulations that use Lagrangian particles (e.g., Athena++ simulations). PLAN is also equipped with a toolkit to analyze the grid-based hydro data (VTK dumps of primitive variables) from Athena, which requires the Boost MultiDimensional Array Library.

Code site:
https://github.com/astroboylrx/PLAN
Used in:
https://ui.adsabs.harvard.edu/abs/2019NatAs...3..808N https://ui.adsabs.harvard.edu/abs/2019ApJ...883..192A
Described in:
https://ui.adsabs.harvard.edu/abs/2019ApJ...885...69L
Bibcode:
2019ascl.soft11001L
Keywords: NASA

Views: 326

ascl:1911.001
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