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Jet Propulsion Laboratory National Aeronautics and Space Administration California Institute of Technology
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Capabilities
 
The current version of the HEALPix package (to be updated semi-regularly) contains a suite of programs which allow all of the following (and more):

  • Programs for fast simulation and analysis of full-sky maps of CMB temperature and polarization anisotropy (sky maps preview) up to sub-arcminute angular resolution (your computer's RAM permitting, see benchmarks).


  • Routines to read and write the FITS formatted map data sets, and allowing the IDL-based display of your results.


  • Programs to search the maps for pixel neighbours and extrema of a random field.


  • Programs to manage, modify and rotate spherical harmonic coefficients of arbritrary maps


  • Programs to perform median filtering of sky maps


  • Automated installation and build scripts.


  • Most critical routines are parallelised


  • Fortan 90 and C++ implementation


  • Optimised P_lm recursion for better performance (2 to 3 times faster than previous release).


  • Radek Stompor's P_lm recursion accurate for computations up to l = 10000.


  • A constrained realization facility.


  • Improved IDL display and file handling routines.


  • An IDL toolkit for pixel manipulation and FITS file manipulation.


  • A Fortran 90 MAP2GIF visualization facility.


  • Improved documentation (PDF and HTML)
 
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