GBconfusion 0.1.0

Tools for galactic confusion estimation with LISA

Description

This package provides the tools to estimate the confusion noise PSD generated by galactic binaries. Starting from a source catalog of the binaries, it generates waveforms using the FastGB code. Then, the confusion is estimated through an iterative subtraction process of the loudest sources. The outputs are: a set of resolved binaries, the resiual confusion noise PSD, and the parameters of the run

The following settings can be modified if needed:

• TDI generation 1.5 or 2.0 (default: 2.0)
• Time of observation (default: 4 years)
• LISA sampling time (default: 5 seconds)
• SNR threshold (default: 7)
• Median filter size for PSD smoothing (default: 2000)
• Instrumental noise (default: TDI A/E channel)

During the pre-processing of the catalog (waveform generation step), there is the possibility to apply a pre-exclusion of weak sources, based on an approximate SNR calculation. This is done through the argument snr_preselection (default: 0.01). It is recommended to use a pre-selection SNR not higher than 0.01, to avoid excluding possibly resolvable sources. Pre-excluded sources will be skipped during the waveform generation, and their contribution to the noise automatically added to the PSD.