This folder contains the scripts to reproduce the Frequency Domain EMRI Waveform analysis presented in Fast and Fourier: Extreme Mass Ratio Inspiral Waveforms in the Frequency Domain. In Tutorial_FrequencyDomain_Waveforms.ipynb you can find how to generate the Frequency Domain (FD) waveforms and compare them to the Time Domain (TD) ones as in the following figure:
The Frequency Domain implementation is now part of the package Fast EMRI Waveforms (arxiv.org/2104.04582, arxiv.org/2008.06071). To run the scripts contained in this folder it is necessary to install the Fast EMRI Waveforms package available here. You also need to install the codes in: LISAanalysistools and Eryn by running python setup.py install inside each folder.
The analysis presented in Fast and Fourier: Extreme Mass Ratio Inspiral Waveforms in the Frequency Domain can be reproduced using the scripts:
- emri_pe.py: runs an MCMC analysis of an EMRI source. Usage:
python emri_pe.py -Tobs 2.0 -M 1e6 -mu 10.0 -p0 12.0 -e0 0.35 -dev 7 -eps 1e-2 -dt 10.0 -injectFD 1 -template fd -nwalkers 16 -ntemps 1 -downsample 100 - check_mode_by_mode.py: scans the EMRI parameter space and compares the accuracy and performance of the time and frequency domain models. Usage:
python check_mode_by_mode.py -Tobs 1.0 -dev 5 -eps 1e-2 -dt 10.0 -fixed_insp 1 -nsteps 10 - Tutorial_FrequencyDomain_Waveforms.ipynb: describes the usage of the frequency domain waveform and compares it with the time domain
- Tutorial_FD_construction_single_mode.ipynb: describes the construction of the frequency domain waveform for a single harmonic
- Lorenzo Speri
- Michael Katz
- Alvin J. K. Chua
- Scott A. Hughes
- Niels Warburton
- Jonathan E. Thompson
- Christian E. A. Chapman-Bird
- Jonathan R. Gair