PyCS3

PyCS3: A Python toolbox for time-delay measurements in lensed quasars - Published in JOSS (2020)

https://gitlab.com/cosmograil/PyCS3

Keywords

Scientific Fields

Repository

PyCS for python 3

https://gitlab.com/cosmograil/PyCS3/blob/master/

# PyCS3


[![pipeline status](https://gitlab.com/cosmograil/PyCS3/badges/master/pipeline.svg)](https://gitlab.com/cosmograil/PyCS3/commits/master)
[![coverage report](https://gitlab.com/cosmograil/PyCS3/badges/master/coverage.svg)](https://cosmograil.gitlab.io/PyCS3/coverage/)
[![Python 3.8](https://img.shields.io/badge/python-3.8-blue.svg)](https://www.python.org/downloads/release/python-380/)
[![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)
[![DOI](https://joss.theoj.org/papers/10.21105/joss.02654/status.svg)](https://doi.org/10.21105/joss.02654)


PyCS3 is a software toolbox to estimate time delays between multiple images of gravitationally lensed quasars, developed within the [COSMOGRAIL](http://www.cosmograil.org) collaboration. This is an update of [PyCS](https://github.com/COSMOGRAIL/PyCS), which is no longer maintained. 


Proceed to the [documentation](https://cosmograil.gitlab.io/PyCS3/) to get further information. In case of any questions, feel free to open an issue here on GitLab.

## Installation 

    git clone https://gitlab.com/cosmograil/PyCS3
    cd PyCS3 
    python setup.py install

or if you prefer to install it locally : 

    python setup.py install --user 
    
## Requirements 

PyCS3 requires the following standard python packages : 
* `numpy`
* `scipy`
* `matplotlib`
* `multiprocess`

If you want to use the regdiff optimiser, you will also need : 
* `scikit-learn`
    
## Example Notebooks and Documentation
The full documentation can be found [here](https://cosmograil.gitlab.io/PyCS3/). 

Example notebooks are located in the [notebook](https://gitlab.com/cosmograil/PyCS3/-/tree/master/notebook) folder : 
* [Importing, exporting and displaying light curves](https://gitlab.com/cosmograil/PyCS3/-/blob/master/notebook/Import_export_and_display.ipynb)
* [Measuring time delays with regdiff and the splines](https://gitlab.com/cosmograil/PyCS3/-/blob/master/notebook/Measuring%20time%20delays%20with%20spline%20and%20regdiff.ipynb)
* [Estimating uncertainties with PyCS3](https://gitlab.com/cosmograil/PyCS3/-/blob/master/notebook/Uncertainties%20estimation.ipynb)

## Attribution

If you use this code, please cite [the papers](https://cosmograil.gitlab.io/PyCS3/citing.html) indicated in the documentation.

## License
PyCS3 is a free software ; you can redistribute it and/or modify it under the terms of the 
GNU General Public License as published by the Free Software Foundation ; either version 3 
of the License, or (at your option) any later version.

PyCS3 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY ; without 
even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 
General Public License for more details ([LICENSE.txt](LICENSE)).

Owner

JOSS Publication

PyCS3: A Python toolbox for time-delay measurements in lensed quasars

Published

September 24, 2020

DOI

10.21105/joss.02654

Volume 5, Issue 53, Page 2654

Authors

Martin Millon
Institute of Physics, Laboratory of Astrophysique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland

Malte Tewes
Argelander-Institut für Astronomie, Bonn, Germany

Vivien Bonvin
Institute of Physics, Laboratory of Astrophysique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland

Bastian Lengen
Institute of Physics, Laboratory of Astrophysique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland

Frederic Courbin
Institute of Physics, Laboratory of Astrophysique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland

Editor

Arfon Smith

Tags

astronomy

View PDF Review Thread Software Archive

Committers

Last synced: 4 months ago

Issues and Pull Requests

Last synced: 4 months ago