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PIANISTpy
Particle Initial conditions with ANISoTropy · ver. 1.0.0
  • Get started
    • What PIANISTpy does
    • Install
    • Quick start
    • Representative computing time
  • User guide
    • Models
    • Particles (Sampler)
    • Observables
    • Superposition and inference
    • Units
    • Accuracy
    • Input and output (write, read)
    • Runtime options
  • Examples
    • Tutorials
    • Chiang+(2026d) figures
    • N-body tests with GAMER
  • API reference
    • Functions by subpackage
    • Numerical settings
    • Code and paper notations
    • Accuracy tables
    • Technical notes
  • Development
    • Release notes
    • Accuracy by release
    • Upcoming features
    • Contributing
  • Citation
    • How to cite
    • License and authors
PIANISTpy

API reference

  • Functions by subpackage
    • The package
    • Density profiles
    • Velocity anisotropy
    • Distribution functions and models
    • Particles
    • Observables
    • Superposition
    • Inference
    • Units
    • Results and files
    • Settings
    • Validation
    • Exceptions
    • Runtime options
    • Numerics
  • Numerical settings
  • Code and paper notations
  • Accuracy tables
  • Technical notes
    • T:0 Principles and conventions
    • T:1 The potential–density pair and the auxiliary density
    • T:2 The distribution function
    • T:3 Truncation
    • T:4 Linear superposition of Method II DFs
    • T:5 Particle sampling
    • T:6 Velocity distributions and dispersion profiles
    • T:7 Gradients
    • T:8 Verification
    • References
  • API reference
  • Technical notes
  • References

References#

  • An J. H., Evans N. W., 2006, ApJ, 642, 752

  • Chiang B. T., van den Bosch F. C., Schive H.-Y., 2026d, PIANISTpy: a JAX-based Python package for velocity-anisotropic astrophysical equilibrium models, MNRAS, submitted

  • de Boor C., 1978, A Practical Guide to Splines. Applied Mathematical Sciences Vol. 27, Springer, New York

  • Vasiliev E., 2019, MNRAS, 482, 1525

© Copyright 2026, Barry T. Chiang.

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