astromartini 2.1.15
Synthetic datacube creation from simulations.
Requires Python: >=3.9

.. image:: https://github.com/kyleaoman/martini/raw/main/martini_banner.png

|Python version| |PyPI version| |JOSS| |PyOpenSci| |ASCL| |Repostatus| |Zenodo| |Tests| |Documentation status| |CodeCov|

.. |Tests| image:: https://github.com/kyleaoman/martini/actions/workflows/lint_and_test.yml/badge.svg
    :target: https://github.com/kyleaoman/martini/actions/workflows/lint_and_test.yml
    :alt: Tests
.. |Documentation status| image:: https://readthedocs.org/projects/martini/badge/?version=latest
    :target: https://martini.readthedocs.io/en/latest/?badge=latest
    :alt: Documentation status
.. |Python version| image:: https://img.shields.io/python/required-version-toml?tomlFilePath=https%3A%2F%2Fraw.githubusercontent.com%2Fkyleaoman%2Fmartini%2Fmain%2Fpyproject.toml
   :alt: Python Version from PEP 621 TOML
.. |PyPI version| image:: https://img.shields.io/pypi/v/astromartini
   :target: https://pypi.org/project/astromartini/
   :alt: PyPI - Version
.. |Repostatus| image:: https://www.repostatus.org/badges/latest/active.svg
   :alt: Project Status: Active – The project has reached a stable, usable state and is being actively developed.
   :target: https://www.repostatus.org/#active
.. |Zenodo| image:: https://zenodo.org/badge/DOI/10.5281/zenodo.11193206.svg
   :alt: Zenodo DOI
   :target: https://zenodo.org/doi/10.5281/zenodo.11193206
.. |CodeCov| image:: https://codecov.io/gh/kyleaoman/martini/graph/badge.svg?token=05OA3Y8889 
   :alt: Tests code coverage
   :target: https://codecov.io/gh/kyleaoman/martini
.. |PyOpenSci| image:: https://tinyurl.com/y22nb8up
   :alt: PyOpenSci
   :target: https://github.com/pyOpenSci/software-review/issues/164
.. |ASCL| image:: https://img.shields.io/badge/ascl-1911.005-blue.svg?colorB=262255
   :alt: ascl:1911.005
   :target: https://ascl.net/1911.005
.. |JOSS| image:: https://joss.theoj.org/papers/f46e9c0a37c70331703069f190c21c09/status.svg
   :alt: JOSS doi:10.21105/joss.06860
   :target: https://joss.theoj.org/papers/f46e9c0a37c70331703069f190c21c09
	   
Overview
========

.. INTRO_START_LABEL

MARTINI is a modular package for the creation of synthetic resolved HI line observations (data cubes) of smoothed-particle hydrodynamics simulations of galaxies. The various aspects of the mock-observing process are divided logically into sub-modules handling the data cube, source, beam, noise, spectral model and SPH kernel. MARTINI is object-oriented: each sub-module provides a class (or classes) which can be configured as desired. For most sub-modules, base classes are provided to allow for straightforward customization. Instances of each sub-module class are given as parameters to the Martini class; a mock observation is then constructed by calling a handful of functions to execute the desired steps in the mock-observing process.

.. INTRO_END_LABEL

Full documentation_ can be found on ReadTheDocs.

.. _documentation: https://martini.readthedocs.io/en/latest/

Citing MARTINI
--------------

.. CITING_START_LABEL
   
If your use of MARTINI leads to a publication, please cite the `JOSS paper`_ (`ADS listing`_) and the `original paper`_ (`also on ADS`_). You may also cite the `MARTINI entry`_ in the ASCL_ (`indexed on ADS`_). Ideally specify the version used (`Zenodo DOI`_, git commit ID and/or version number) and link to the github repository.

.. code-block:: bibtex

    @ARTICLE{2024JOSS....9.6860O,
        author = {{Oman}, Kyle A.},
        title = "{MARTINI: Mock Array Radio Telescope Interferometry of the Neutral ISM}",
        journal = {The Journal of Open Source Software},
        keywords = {astronomy, simulations},
        year = 2024,
        month = jun,
        volume = {9},
        number = {98},
        eid = {6860},
        pages = {6860},
        doi = {10.21105/joss.06860},
        adsurl = {https://ui.adsabs.harvard.edu/abs/2024JOSS....9.6860O},
        adsnote = {Provided by the SAO/NASA Astrophysics Data System}
    }

    @ARTICLE{
        2019MNRAS.482..821O,
        author = {{Oman}, Kyle A. and {Marasco}, Antonino and {Navarro}, Julio F. and {Frenk}, Carlos S. and {Schaye}, Joop and {Ben{\'\i}tez-Llambay}, Alejandro},
        title = "{Non-circular motions and the diversity of dwarf galaxy rotation curves}",
        journal = {\mnras},
        keywords = {ISM: kinematics and dynamics, galaxies: haloes, galaxies: structure, dark matter, Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics},
        year = 2019,
        month = jan,
        volume = {482},
        number = {1},
        pages = {821-847},
        doi = {10.1093/mnras/sty2687},
        archivePrefix = {arXiv},
        eprint = {1706.07478},
        primaryClass = {astro-ph.GA},
        adsurl = {https://ui.adsabs.harvard.edu/abs/2019MNRAS.482..821O},
        adsnote = {Provided by the SAO/NASA Astrophysics Data System}
    }

    @MISC{
        2019ascl.soft11005O,
     	author = {{Oman}, Kyle A.},
        title = "{MARTINI: Mock spatially resolved spectral line observations of simulated galaxies}",
        keywords = {Software},
        howpublished = {Astrophysics Source Code Library, record ascl:1911.005},
        year = 2019,
        month = nov,
        eid = {ascl:1911.005},
        pages = {ascl:1911.005},
        archivePrefix = {ascl},
        eprint = {1911.005},
        adsurl = {https://ui.adsabs.harvard.edu/abs/2019ascl.soft11005O},
        adsnote = {Provided by the SAO/NASA Astrophysics Data System}
    }

Work that has used MARTINI includes: `Oman et al. (2019)`_, `Mancera Piña et al. (2019)`_, `Chauhan et al. (2019)`_, `Mancera Piña et al. (2020)`_, `Santos-Santos et al. (2020)`_, `Glowacki et al. (2021)`_, `Bilimogga et al. (2022)`_, `Glowacki et al. (2022)`_, `Roper et al. (2023)`_, `Oman et al. (2024)`_, `Elson (2024)`_ and `Perron-Cormier et al. (2025)`_. The ALMASim_ package (`Guglielmetti et al. 2023`_) builds on some of MARTINI's functionality. If your work has used MARTINI and is not listed here, please let me know (by email_ or github issue).

.. _JOSS paper: https://doi.org/10.21105/joss.06860
.. _ADS listing: https://ui.adsabs.harvard.edu/abs/2024JOSS....9.6860O
.. _original paper: https://doi.org/10.1093/mnras/sty2687
.. _also on ADS: https://ui.adsabs.harvard.edu/abs/2019MNRAS.482..821O/abstract
.. _MARTINI entry: https://ascl.net/1911.005
.. _ASCL: https://ascl.net
.. _indexed on ADS: https://ui.adsabs.harvard.edu/abs/2019ascl.soft11005O/abstract
.. _Zenodo DOI: https://zenodo.org/records/11198185
.. _Oman et al. (2019): https://doi.org/10.1093/mnras/sty2687
.. _Mancera Piña et al. (2019): https://doi.org/10.3847/2041-8213/ab40c7
.. _Chauhan et al. (2019): https://doi.org/10.1093/mnras/stz2069
.. _Mancera Piña et al. (2020): https://doi.org/10.1093/mnras/staa1256
.. _Santos-Santos et al. (2020): https://doi.org/10.1093/mnras/staa1072
.. _Glowacki et al. (2021): https://doi.org/10.1093/mnras/stab2279
.. _Bilimogga et al. (2022): https://doi.org/10.1093/mnras/stac1213
.. _Glowacki et al. (2022): https://doi.org/10.1093/mnras/stac2684
.. _Roper et al. (2023): https://doi.org/10.1093/mnras/stad549
.. _Oman et al. (2024): https://doi.org/10.1093/mnras/stae1772
.. _ALMASim: https://github.com/MicheleDelliVeneri/ALMASim
.. _Guglielmetti et al. 2023: https://doi.org/10.3390/psf2023009018
.. _Elson (2024): https://doi.org/10.1093/mnras/stae2145
.. _Perron-Cormier et al. (2025): https://doi.org/10.3847/1538-3881/ada567
.. _email: mailto:kyle.a.oman@durham.ac.uk

.. CITING_END_LABEL

Installation Notes
==================

.. INSTALLATION_NOTES_START_LABEL

MARTINI works with ``python3`` (version ``3.9`` or higher), and does not support ``python2``.

Stable releases are available via PyPI_:

.. code-block::

    python3 -m pip install astromartini 

and the numbered releases (starting from ``2.0.0``) on github. The github main branch is actively developed: things will change, bugs will happen. Any feedback is greatly appreciated via github issues or kyle.a.oman@durham.ac.uk.

.. _PyPI: https://pypi.org/project/astromartini/
.. _kyle.a.oman@durham.ac.uk: mailto:kyle.a.oman@durham.ac.uk

The easiest way to install MARTINI is from PyPI by doing ``python3 -m pip install astromartini``. Output to ``.fits`` files is supported by default; if output to ``.hdf5`` format is desired use ``python3 -m pip install "astromartini[hdf5_output]"`` instead. This will also handle the installation of the required dependencies. Other optional features require additional dependencies hosted on PyPI. In particular, EAGLE, Illustris/TNG, Simba and FIRE users who wish to use the custom source modules for those simulations in MARTINI can automatically install the optional dependencies with ``python3 -m pip install "astromartini[eaglesource]"``, ``python3 -m pip install "astromartini[simbasource]"``, ``python3 -m pip install "astromartini[tngsource]"``, or ``python3 -m pip install "astromartini[firesource]"``.

.. INSTALLATION_NOTES_END_LABEL

Installing from github
----------------------

.. GITHUB_INSTALLATION_NOTES_START_LABEL

You can browse releases_ that correspond to versions on PyPI (starting from 2.0.0) and download the source code. Unpack the zip file if necessary. If you're feeling adventurous or looking for a feature under development you can so browse branches_ and choose one to clone. In either case you should then be able to do ``python3 -m pip install "martini/[optional]"``, where ``optional`` should be replaced by a comma separated list of optional dependencies. If this fails check that ``martini/`` is a path pointing to the directory containing the ``pyproject.toml`` file for MARTINI. The currently available options are:

- ``hdf5_output``: Supports output to hdf5 files via the h5py package. Since h5py is hosted on PyPI, this option may be used when installing via PyPI.
- ``eaglesource``: Dependencies for the |martini.sources.EAGLESource| module, which greatly simplifies reading input from EAGLE simulation snapshots. Installs my Hdecompose_ package, providing implementations of the `Rahmati et al. (2013)`_ method for computing netural hydrogen fractions and the `Blitz & Rosolowsky (2006)`_ method for atomic/molecular fractions. Also installs `my python-only version`_ of John Helly's `read_eagle`_ package for quick extraction of particles in a simulation sub-volume. h5py is also required.
- ``tngsource``: Dependencies for the |martini.sources.TNGSource| module, which greatly simplifies reading input from IllustrisTNG (and original Illustris) snapshots. Installs my Hdecompose_ package, providing implementations of the `Rahmati et al. (2013)`_ method for computing netural hydrogen fractions and the `Blitz & Rosolowsky (2006)`_ method for atomic/molecular fractions.
- ``magneticumsource``: Dependencies for the |martini.sources.MagneticumSource| module, which supports the Magneticum simulations via the `g3read`_ package.
- ``sosource``: Dependencies for the |martini.sources.SOSource| module, which provides unofficial support for several simulation datasets hosted on specific systems. This is intended mostly for my own use, but APOSTLE, C-EAGLE/Hydrangea and Auriga users may contact_ me for further information.

.. _releases: https://github.com/kyleaoman/martini/releases
.. _branches: https://github.com/kyleaoman/martini/branches
.. _Hdecompose: https://github.com/kyleaoman/Hdecompose
.. _`Rahmati et al. (2013)`: https://ui.adsabs.harvard.edu/abs/2013MNRAS.430.2427R/abstract
.. _`Blitz & Rosolowsky (2006)`: https://ui.adsabs.harvard.edu/abs/2006ApJ...650..933B/abstract
.. _`my python-only version`: https://github.com/kyleaoman/pyread_eagle
.. _`read_eagle`: https://github.com/jchelly/read_eagle
.. _`g3read`: https://github.com/aragagnin/g3read
.. _contact: mailto:kyle.a.oman@durham.ac.uk

.. GITHUB_INSTALLATION_NOTES_END_LABEL

Getting started
===============

.. QUICKSTART_START_LABEL
   
See the help for |martini.Martini| for an example script to configure MARTINI and create a datacube. This example can be run by doing:

.. code-block:: python

   python -c "from martini import demo; demo()"

MARTINI has (so far) been successfully run on the output of these simulations:

* EAGLE (also APOSTLE, C-EAGLE/Hydrangea)
* IllustrisTNG (also Illustris, Auriga)
* Simba
* FIRE
* Magneticum
* MaGICC, Marvelous-Merian (and therefore in principle other N-body shop projects)
* Colibre (test runs)

I attempt to support publicly available simulations with a customized source module. If your simulation is public and not supported, please `contact me`_. Currently custom source modules exist for:

.. _contact me: mailto:kyle.a.oman@durham.ac.uk

* EAGLE (|martini.sources.EAGLESource|)
* IllustrisTNG (|martini.sources.TNGSource|; also works with Illustris)
* FIRE (|martini.sources.FIRESource|)
* Simba (|martini.sources.SimbaSource|)
* Magneticum (|martini.sources.MagneticumSource|)
* Colibre (|martini.sources.ColibreSource|)

Example notebooks_ are available for supported, publicly available simulations.

.. _notebooks: https://github.com/kyleaoman/martini/tree/main/examples

.. QUICKSTART_END_LABEL

.. |martini.Martini| replace:: `martini.Martini <https://martini.readthedocs.io/en/latest/modules/martini.martini.html#martini.martini.Martini>`__
.. |martini.sources.EAGLESource| replace:: `martini.sources.EAGLESource <https://martini.readthedocs.io/en/latest/modules/martini.sources.eagle_source.html#martini.sources.eagle_source.EAGLESource>`__
.. |martini.sources.TNGSource| replace:: `martini.sources.TNGSource <https://martini.readthedocs.io/en/latest/modules/martini.sources.tng_source.html#martini.sources.tng_source.TNGSource>`__
.. |martini.sources.FIRESource| replace:: `martini.sources.FIRESource <https://martini.readthedocs.io/en/latest/modules/martini.sources.fire_source.html#martini.sources.fire_source.FIRESource>`__					 
.. |martini.sources.MagneticumSource| replace:: `martini.sources.MagneticumSource <https://martini.readthedocs.io/en/latest/modules/martini.sources.magneticum_source.html#martini.sources.magneticum_source.MagneticumSource>`__
.. |martini.sources.SimbaSource| replace:: `martini.sources.SimbaSource <https://martini.readthedocs.io/en/latest/modules/martini.sources.simba_source.html#martini.sources.simba_source.SimbaSource>`__
.. |martini.sources.SOSource| replace:: `martini.sources.SOSource <https://martini.readthedocs.io/en/latest/modules/martini.sources.so_source.html#martini.sources.so_source.SOSource>`__
.. |martini.sources.ColibreSource| replace:: `martini.sources.ColibreSource <https://martini.readthedocs.io/en/latest/modules/martini.sources.colibre_source.html#martini.sources.colibre_source.ColibreSource>`__