!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Copyright (C) 1997-2008 HEALPix collaboration HEALPix is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. HEALPix is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with HEALPix; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA For more information about HEALPix see http://healpix.jpl.nasa.gov !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! HISTORY This is a software package for HEALPix, the Hierarchical, Equal Area, and iso-Latitude Pixelisation of the sphere, which was originally devised in early 1997 by Krzysztof M. Gorski at the Theoretical Astrophysics Center in Copenhagen. Early development of the HEALPix concept and initial implementation was made in the spring of 1997 in collaborative work of KMG, currently at JPL with Eric Hivon, currently at Caltech. Benjamin D. Wandelt, currently at UI at Urbana-Champain, has contributed critically to the further development of HEALPix and related mathematical methods. The HEALPix-based methods contained in the present package, their implementation in Fortran90, IDL, C, C++ and java routines and codes, and documentation were developed jointly by: Anthony J. Banday (banday@mpa-garching.mpg.de), Matthias Bartelmann (mbartelmann@ita.uni-heidelberg.de), Hans Kristian Eriksen (h.k.k.eriksen@astro.uio.no), Krzysztof M. Gorski (krzysztof.m.gorski@jpl.nasa.gov), Frode K. Hansen (fhansen@mpa-garching.mpg.de), Eric Hivon (efh@ipac.caltech.edu), William O'Mullane (womullan@skysrv.pha.jhu.edu), Martin Reinecke (martin@mpa-garching.mpg.de), and Benjamin D. Wandelt (bwandelt@uiuc.edu). The HEALPix package is available at this address: http://healpix.jpl.nasa.gov COPYRIGHTS Copyright 1997 by Krzysztof M. Gorski for the HEALPix design and logo. All rights reserved. Copyright 1997 by Eric Hivon and Krzysztof M. Gorski for the HEALPix package version 0.80 All rights reserved. Copyright 1998 by Benjamin Wandelt, Eric Hivon, and Krzysztof M. Gorski for the HotSpot package All rights reserved. Copyright 1998 by K.M. Gorski, Eric Hivon, and B.D. Wandelt for the HEALPix package version 0.90 All rights reserved. Copyright 1998 by A.J. Banday and M.S. Bartelmann for the healgif package All rights reserved. Copyright 1999 by K.M. Gorski, B.D. Wandelt, E. Hivon, F. Hansen, A.J. Banday, and M. Bartelmann for the HEALPix package version 1.00 All rights reserved. Copyright 2000 by K.M. Gorski, B.D. Wandelt, E. Hivon, F. Hansen, A.J. Banday, and M. Bartelmann for the HEALPix package version 1.10 All rights reserved. Copyright 2003 by K.M. Gorski, E. Hivon, M. Reinecke, A.J. Banday, B.D. Wandelt, and M. Bartelmann for the HEALPix package version 1.20 All rights reserved. Copyright 2003 by E. Hivon, Kenneth M. Ganga (ganga@cdf.in2p3.fr), Reza Ansari (ansari@lal.in2p3.fr) for the HEALPix C package All rights reserved. Copyright 2005 by E. Hivon, M. Reinecke, W. O'Mullane, H.K. Eriksen, K.M. Gorski, A.J. Banday for the HEALPix package version 2.00 All rights reserved. Copyright 2005 by H.K. Eriksen, Snorre Boasson (snorre.boasson@ntnu.no), M. Reinecke, E. Hivon for the MPI implementation of Healpix F90 alm routines All rights reserved. Copyright 2008 by E. Hivon, M. Reinecke, W. O'Mullane, H.K. Eriksen, K.M. Gorski, A.J. Banday, E. Joliet for the HEALPix package version 2.10 All rights reserved. Copyright 2008 by G. Rocha for the ngsims package All rights reserved. Copyright 2008 by J. P. Leahy for the ximview package All rights reserved. Copyright 2008 by D. Larson for the alice package All rights reserved. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ACKNOWLEDGMENTS We thank the following people for their contributions and/or suggestions, which significantly helped us to improve Healpix throughout its several releases Reza Ansari, Marc Ashdown, Carlo Baccigalupi, Tristan Beau, Snorre Boasson, Michela Botti, Stephane Colombi, Giancarlo de Gasperis, Herve Dole, Olivier Dore, Hans Kristian Eriksen, Ken Ganga, Giovanna Giardino, Jean-Christophe Hamilton, Andrew Jaffe Alex Kim, Ted Kisner, Guy Le Meur, Anthony Lewis, Davide Maino, Serge Monkewitz, Paolo Natoli, Clive Page, William Pence, Nicolas Ponthieu, Torsti Poutanen, Simon Prunet, Benoit Revenu, Rosa Ruiloba, David N. Spergel, Radek Stompor, Giovanna Tinetti.