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ezquiaga / phazap

Gravitational wave phase reconstruction for low-latency identification of strongly lensed signals
MIT License
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phazap

license GitHub release Documentation Status

Phazap is a package to efficiently post-process gravitational-wave (GW) parameter estimation data to obtain the phases and polarization state of the signal at a given detector and frequency. Details on the method are presented in Ezquiaga, Hu, Lo (2023). The key module is phazap.py.

This code is used for low-latency identification of strongly lensed gravitational waves via their phase consistency by measuring their distance in the detector phase space. The relevant module including the distance statistic is tension_utils.py.

Phazap builds on top of the IGWN conda enviroment https://computing.docs.ligo.org/conda/environments/igwn/ which include the standard GW packages such as LALSuite and bilby.

Installation

There are two ways to install the package, either

from pypi

$ pip install phazap

from source

$ git clone https://github.com/ezquiaga/phazap.git
$ cd phazap
$ pip install .

Quick-start

Refer to the documentation for two illustrative examples