Astropy: A Community Python Package for Astronomy

Kramer, Roban; Ely, Justin; Tollerud, Erik J.; Aldcroft, Tom; Price-Whelan, Adrian M.; Conseil, Simon; Servillat, Mathieu; Parikh, Madhura M.; Pontzen, Andrew; Singer, Leo P.; Conley, Alexander J.; Dencheva, Nadia; Zabalza, Victor; Nair, Prasanth H.; Grollier, Frédéric; Ptak, Andy; Günther, Hans M.; Greenfield, Perry; Droettboom, Michael; Barbary, Kyle; Edwards, Zachary I.; Crighton, Neil H. M.; Fox, Ryan; Weaver, Benjamin A.; Woillez, Julien; Refsdal, Brian; Streicher, Ole; Casey, Andrew R.; Bostroem, K. Azalee; Davis, Matt; Ferguson, Henry J.M.; Pierfederici, Francesco Maria; Bray, Erik; Labrie, Kathleen; Ginsburg, Adam; Kerzendorf, Wolfgang E.; Muna, Demitri; The Astropy Collaboration, null; Turner, James E. H.; Burke, D J; Robitaille, Thomas; Deil, Christoph; Lim, Pey Lian; Jenness, Tim; Crawford, Steven M.

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Astropy: A Community Python Package for Astronomy

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Author(s): Roban Kramer, Justin Ely, Erik Tollerud, Tom Aldcroft, Adrian M. Price-Whelan, Simon Conseil, Mathieu Servillat, Madhura M. Parikh, Andrew Pontzen, Leo Singer, Alexander J. Conley, Nadia Dencheva, Victor Zabalza, Prasanth Nair, Frédéric Grollier, Andy Ptak, Hans M. Günther, Perry Greenfield, Michael Droettboom, Kyle Barbary, Zachary I. Edwards, Neil H. M. Crighton, Ryan Fox, Benjamin Weaver, Julien Woillez, Brian Refsdal, Ole Streicher, Andrew Casey, K. Bostroem, Matt Davis, Henry J.M. Ferguson, Francesco Maria Pierfederici, Erik Bray, Kathleen Labrie, Adam Ginsburg, Wolfgang Kerzendorf, Demitri Muna, The Astropy Collaboration, James Turner, D J Burke, Thomas Robitaille, Christoph Deil, Pey Lian Lim, Tim Jenness, Steven M. Crawford

Publication date: 2013-07-25

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Abstract

We present the first public version (v0.2) of the open-source and community-developed Python package, Astropy. This package provides core astronomy-related functionality to the community, including support for domain-specific file formats such as Flexible Image Transport System (FITS) files, Virtual Observatory (VO) tables, and common ASCII table formats, unit and physical quantity conversions, physical constants specific to astronomy, celestial coordinate and time transformations, world coordinate system (WCS) support, generalized containers for representing gridded as well as tabular data, and a framework for cosmological transformations and conversions. Significant functionality is under active development, such as a model fitting framework, VO client and server tools, and aperture and point spread function (PSF) photometry tools. The core development team is actively making additions and enhancements to the current code base, and we encourage anyone interested to participate in the development of future Astropy versions.