Package: galstreams
galstreamsDESCRIPTION:The new and improvedgalstreamsLibrary of Stellar Streams in the Milky Way (v1.0) is introduced. Stellar streams are now supported as track SkyCoord objects (Track6D), rather than the Footprint objects provided in the previoues version (v0.1). The main new features of the library are:Celestial, distance, proper motion and radial velocity tracks for each stream (pm/vrad when available) stored as astropy SkyCoord objectsStream's (heliocentric) coordinate frame realised as astropy reference frameStream's end-points and mid-pointPolygon FootprintsPole (at mid point) and pole tracks in the heliocentric and Galactocentric (GSR) framesAngular momentum track in a heliocentric reference frame at rest with respect to the Galactic centreSummary object for the full library: Uniformly reported stream length, end points and mid-point, heliocentric and Galactocentric mid-pole, track and discovery references and information flag denoting which of the 6D attributes (sky, distance, proper motions and radial velocity) are available in the track object.The new library includes 125 stream tracks corresponding to 97 distinct stellar streams (updated as of March 2022). The library is described in detail inMateu (2022).REQUIREMENTSPython modules required are NUMPY, SCIPY, MATPLOTLIB, ASTROPY and GALA.INSTALLATIONWith root accessIn a terminal, run the following command:sudopythonsetup.pyinstalland source your .cshrc / .bashrc or equivalent file.Without root accessIf you do not have root access, you can install in the custom directory path_to_dir.
First, add the directory's path path_to_dir and path_to_dir/lib/python??/site-packages/
to the PYTHONPATH variable in your .cshrc (or .bashrc) file and source it. Then install using the --prefix option::pythonsetup.pyinstall--prefix=path_to_dirAdd path_to_dir/bin to your PATH in your .csrhc or .bashrc file.With pippipinstall--usergalstreamsQuick GuideFor a detailed walk-through the library please see the example Python notebooks providedhere.LicenceBSD 3-Clause LicenseCopyright (c) 2017, Cecilia Mateu
All rights reserved.Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:Redistributions of source code must retain the above copyright notice, this
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