Statistical crossmatching of astronomical catalogues

NOTE: THIS IS A PRELIMINARY DEVELOPMENT VERSION, FAR FROM BEING FULLY TESTED AND DOCUMENTED.

astromatch is a Python 3 package for statistical cross-matching of astronomical catalogues. We offer three different methods: 'lr', our own implementation of the likelihood ratio method; 'xmatch', which uses an external server hosted by the CDS; and 'nway', using the NWAY package.

astromatch gives a consistent output for different cross-matching methods, enabling an easier comparison of their results. It also offers a useful framework, well integrated within the Astropy framework, for including new methods.

Dependencies

astromatch depends on:

• numpy
• astropy
• mocpy

Certain functionalities also requiere:

• nway
• matplotlib
• request

Installation

astromatch can be easily installed using pip:

pip install astromatch

Alternatively, clone the repository and use pip to install the downloaded code:

git clone https://github.com/ruizca/astromatch.git
pip install ./astromatch

Examples

You can find a Jupyter notebook explaining how to use astromatch in docs/astropy/examples.ipynb.

License

This project is Copyright (c) A. Ruiz and licensed under the terms of the BSD 3-Clause license. This package is based upon the Astropy package template which is licensed under the BSD 3-clause licence. See the licenses folder for more information.