qnm: Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients calculator
qnm computes the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coefficients. The qnm package includes a Leaver solver with the Cook-Zalutskiy spectral approach to the angular sector, and a caching mechanism to avoid repeating calculations. A large cache of low â, m, n modes is available for download and can be installed with a single function call and interpolated to provide good initial guess for root-polishing at new values of spin.
Astrophysics Source Code Library
- Pub Date:
- October 2019