precession 2.1: black-hole binary spin precession on eccentric orbits
Abstract
Abstract We present version 2.1 of the public code precession, a Python module for studying the post-Newtonian dynamics of precessing black hole binaries. In this release, we extend the code to handle eccentric orbits. This extension leverages the existing numerical infrastructure wherever possible, introducing a semi-automatic method to adapt circular-orbit functions to the eccentric case via a Python decorator. Additional new features include orbit- and precession-averaged evolutionary equations for the eccentricity, as well as revised expressions to convert between post-Newtonian separation and gravitational-wave emission frequency.
Fields of Study & Subjects
Pulsars and Gravitational Waves Research
Astrophysical Phenomena and Observations
Relativity and Gravitational Theory
Publication details
- Journal / source
- Journal of Physics Conference Series
- Publisher
- IOP Publishing
- Volume
- 3177
- Issue
- 1
- Pages
- 012117–012117
- Publication date
- 1 February 2026
- Language
- EN