healpy: Python wrapper for HEALPix

Discussion topics for individual codes
Post Reply
Ada Coda
ASCL Robot
Posts: 1702
Joined: Thu May 08, 2014 5:37 am

healpy: Python wrapper for HEALPix

Post by Ada Coda » Mon Aug 31, 2020 7:59 pm

healpy: Python wrapper for HEALPix

Abstract: healpy handles pixelated data on the sphere. It is based on the Hierarchical Equal Area isoLatitude Pixelization (HEALPix) scheme and bundles the HEALPix (ascl:1107.018) C++ library. healpy provides utilities to convert between sky coordinates and pixel indices in HEALPix nested and ring schemes and find pixels within a disk, a polygon or a strip in the sky. It can apply coordinate transformations between Galactic, Ecliptic and Equatorial reference frames, apply custom rotations either to vectors or full maps, and read and write HEALPix maps to disk in FITS format. healpy also includes utilities to upgrade and downgrade the resolution of existing HEALPix maps and transform maps to Spherical Harmonics space and back using multi-threaded C++ routines, among other utilities.

Credit: Zonca, Andrea; Singer, Leo; Lenz, Daniel; Reinecke, Martin; Rosset, Cyrille; Hivon, Eric; Gorski, Krzysztof

Site: https://healpy.readthedocs.io/en/latest/
https://ui.adsabs.harvard.edu/abs/2019ApJ...872...56P

Bibcode: 2020ascl.soft08022Z

Preferred citation method: https://ui.adsabs.harvard.edu/abs/2019JOSS....4.1298Z and http://adsabs.harvard.edu/abs/2005ApJ...622..759G; please see additional citation information here: https://github.com/healpy/healpy/blob/master/CITATION

ID: ascl:2008.022

Post Reply