LANFEAR

LANFEAR (Light-weight Analytic N-body Field Expansion to Ascertain Resonances) combines C++ routines to represent galactic potentials in an analytic form and integrate particles with an easy-to-use python interface for resonant frequency analysis. The code classifies particles into one of the following orbit families:

• short axis tubes
• inner long axis tubes
• outer long axis tubes
• rosettes
• boxlets
• non-resonant boxes
• irregular

Methods to ascertain the goodness-of-fit of the analytic potential, as well as plotting routines and summary statistics for the orbit classification, are included. Tracking particles across multiple snapshots is also included, allowing for the evolution of orbital classes to be investigated.

LANFEAR can be downloaded from the github page. This is an ongoing project, so please reach out if you have specific feature requests.