qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
arXiv:1908.10377 · doi:10.21105/joss.01683
Abstract
is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coefficients. The package includes a Leaver solver with the Cook-Zalutskiy spectral approach to the angular sector, and a caching mechanism to avoid repeating calculations. We provide a large cache of low modes, which can be downloaded and installed with a single function call, and interpolated to provide good initial guess for root-polishing at new values of spin.
3 pages, 0 figures. Matches version accepted by the Journal of Open Source Software. The source repository: https://github.com/duetosymmetry/qnm , PyPI entry: https://pypi.org/project/qnm/ , documentation: https://qnm.readthedocs.io . Suggestions and pull requests welcome
References in corpus (8)
- The NumPy array: a structure for efficient numerical computation
- Quasinormal modes of black holes and black branes
- Tests of general relativity with GW150914
- Testing the no-hair theorem with GW150914
- The evolution of circular, non-equatorial orbits of Kerr black holes due to gravitational-wave emission
- Gravitational perturbations of the Kerr geometry: High-accuracy study
- Mixing of spherical and spheroidal modes in perturbed Kerr black holes
- On an Expansion Method for Black Hole Quasinormal Modes and Regge Poles
Cited by in corpus (74)
- Tests of General Relativity with Binary Black Holes from the second LIGO-Virgo Gravitational-Wave Transient Catalog
- Pseudospectrum and black hole quasi-normal mode (in)stability
- Nonlinearities in Black Hole Ringdowns
- Nonlinear effects in black hole ringdown
- Laying the foundation of the effective-one-body waveform models SEOBNRv5: improved accuracy and efficiency for spinning non-precessing binary black holes
- Tests of General Relativity with GWTC-3
- GW250114: testing Hawking's area law and the Kerr nature of black holes
- The Science of the Einstein Telescope
- Computation of Displacement and Spin Gravitational Memory in Numerical Relativity
- The curious case of GW200129: interplay between spin-precession inference and data-quality issues
- Extracting linear and nonlinear quasinormal modes from black hole merger simulations
- Quasinormal-mode filters: a new approach to analyze the gravitational-wave ringdown of binary black-hole mergers
- The universal Teukolsky equations and black hole perturbations in higher-derivative gravity
- Importance of mirror modes in binary black hole ringdown waveform
- High Precision Ringdown Modeling: Multimode Fits and BMS Frames
- Spin dependence of black hole ringdown nonlinearities
- Accurate waveforms for eccentric, aligned-spin binary black holes: The multipolar effective-one-body model SEOBNRv5EHM
- The excitation of quadratic quasinormal modes for Kerr black holes
- SuperRad: Modeling the black hole superradiance gravitational waveform
- High-overtone fits to numerical relativity ringdowns: beyond the dismissed n=8 special tone
- Quasinormal modes and their overtones at the common horizon in a binary black hole merger
- Using rational filters to uncover the first ringdown overtone in GW150914
- Nonlinear ringdown at the black hole horizon
- Can gravitational-wave memory help constrain binary black-hole parameters? A LISA case study
- Inspiral-merger-ringdown waveforms in Einstein-scalar-Gauss-Bonnet gravity within the effective-one-body formalism
- Quasinormal modes and their excitation beyond general relativity
- Angular emission patterns of remnant black holes
- Numerical-relativity simulations of the quasi-circular inspiral and merger of non-spinning, charged black holes: methods and comparison with approximate approaches
- Ringdown amplitudes of nonspinning eccentric binaries
- Gravitational wave surrogate model for spinning, intermediate mass ratio binaries based on perturbation theory and numerical relativity
- Universal features of gravitational waves emitted by superkick binary black hole systems
- Gravitational-wave echoes from numerical-relativity waveforms via space-time construction near merging compact objects
- Measuring the ringdown scalar polarization of gravitational waves in Einstein scalar Gauss-Bonnet gravity
- Flexible mapping of ringdown amplitudes for nonprecessing binary black holes
- Fully relativistic three-dimensional Cauchy-characteristic matching for physical degrees of freedom
- Striking the right tone: toward a self-consistent framework for measuring black hole ringdowns
- Monster Shocks, Gamma-Ray Bursts, and Black Hole Quasi-normal Modes from Neutron-star Collapse
- Quasinormal modes and excitation factors of Kerr black holes
- Analyzing black-hole ringdowns II: data conditioning
- High-Precision Ringdown Surrogate Model for Non-Precessing Binary Black Holes
- Nonlinear effect of absorption on the ringdown of a spinning black hole
- On the (non) existence of superregular boson clouds around extremal Kerr black holes and its connection with number theory
- Iterative extraction of overtones from black hole ringdown
- Spin wave optics for gravitational waves lensed by a Kerr black hole
- Multipole moments on the common horizon in a binary-black-hole simulation
- Ringdown mode amplitudes of precessing binary black holes
- Linear vs. nonlinear modeling of black hole ringdowns
- Measuring quasi-normal mode amplitudes with misaligned binary black hole ringdowns
- Getting More Out of Black Hole Superradiance: a Statistically Rigorous Approach to Ultralight Boson Constraints from Black Hole Spin Measurements
- Relativistic model of binary extreme-mass-ratio inspiral systems and their gravitational radiation
- Black hole pulsars and monster shocks as outcomes of black hole--neutron star mergers
- Connecting scattering, monodromy, and MST's renormalized angular momentum for the Teukolsky equation in Kerr spacetime
- Quadratic Mode Couplings in Rotating Black Holes and Their Detectability
- Repeated Ringing of the Black Hole's Bell: Quasi-Normal Bursts from Highly Eccentric, Extreme Mass-Ratio Binaries
- Retesting the no-hair theorem with GW150914
- Complete quasinormal modes of Type-D black holes
- GW230814: investigation of a loud gravitational-wave signal observed with a single detector
- Dynamical Lensing Tomography of Black Hole Ringdown
- Advancing the Effective-One-Body Framework in the Test-Mass Limit
- Ringdown of a postinnermost stable circular orbit of a rapidly spinning black hole: Mass ratio dependence of higher harmonic quasinormal mode excitation
- QuasinormalModes.jl: A Julia package for computing discrete eigenvalues of second order ODEs
- Black-Hole Cartography
- Gravitational waveform model based on photon motion for spinning black holes
- Quasinormal mode content of binary black hole ringdowns
- Massive boson stars: Stability and GW emission in head-on mergers
- Sourced Carrollian Fluids Dual to Black Hole Horizons
- Natural polynomials for Kerr quasi-normal modes
- First Overtone Mode in the Ringdown Signal of GW231028
- Quasinormal modes from numerical relativity with Bayesian inference
- Confronting eikonal and post-Kerr methods with numerical evolution of scalar field perturbations in spacetimes beyond Kerr
- Rapidly Rotating Neutron Star Collapse in Massive Scalar-Tensor Theories
- superB/NRPy: Scalable, Task-Based Numerical Relativity for 3G Gravitational Wave Science
- Computing the quasinormal modes and eigenfunctions for the Teukolsky equation using horizon penetrating, hyperboloidally compactified coordinates
- Uncovering subdominant multipole asymmetries in binary black-hole mergers