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[ascl:1210.008] Rockstar: Phase-space halo finder

Rockstar (Robust Overdensity Calculation using K-Space Topologically Adaptive Refinement) identifies dark matter halos, substructure, and tidal features. The approach is based on adaptive hierarchical refinement of friends-of-friends groups in six phase-space dimensions and one time dimension, which allows for robust (grid-independent, shape-independent, and noise-resilient) tracking of substructure. Our method is massively parallel (up to 10^5 CPUs) and runs on the largest current simulations (>10^10 particles) with high efficiency (10 CPU hours and 60 gigabytes of memory required per billion particles analyzed). Rockstar offers significant improvement in substructure recovery as compared to several other halo finders.

Code site:
https://bitbucket.org/gfcstanford/rockstar
Used in:
https://ui.adsabs.harvard.edu/abs/2013MNRAS.428.2039K
Described in:
https://ui.adsabs.harvard.edu/abs/2013ApJ...762..109B
Bibcode:
2012ascl.soft10008B
Keywords: NASA

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ascl:1210.008
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