Search Results for "healpix"

Software for pixelization, hierarchical indexation, synthesis, analysis, and visualization of data on the sphere. Please acknowledge HEALPix by quoting the web page http://healpix.sourceforge.net (or https://healpix.sourceforge.io) and publication: K.M. Gorski et al., 2005, Ap.J., 622, p.759 Full software documentation available at https://healpix.sourceforge.io/documentation.php Wiki Pages: https://sourceforge.net/p/healpix/wiki/Home Exchanging Data with HEALPix (in FITS files): https://sourceforge.net/p/healpix/wiki/Exchanging%20Data%20with%20HEALPix/ GDL and FL users should read https://sourceforge.net/p/healpix/wiki/HEALPix%20and%20GDL/

Hammurabi is a HEALPix-based tool for simulating observables such as polarized synchrotron and thermal dust emission from models of physical inputs such as magnetic fields, dust and electron distributions, etc. It is a modular C++ framework into which you can add your own models easily and then use it to perform the line-of-sight integration to compute the observables.

...Current version (r2766) includes * accurate propagation scheme * polarized synchrotron * free-free emission and absorption * new convection models * anisotropic diffusion * primary positrons * free-escape boundary conditions * new hadronic gamma-ray production models * new injection spectral breaks * upwards compatible with latest HEALPix * improved HEALPix skymap format * full reference output for a sample run * deuterium production by pp fusion * JF12 B-field * hadronic losses Full details in the Explanatory Supplement and README. Now at https://gitlab.mpcdf.mpg.de/aws/galprop Older versions, datasets etc: http://galprop.stanford.edu. See also http://www.mpe.mpg.de/~aws/propagate.html https://sourceforge.net/projects/galplot http://sourceforge.net/projects/galpropskymapco https://sourceforge.net/projects/gcrconvert https://sourceforge.net/projects/galpropsynchrotron synchrotron routines.

...Libsharp is a collection of algorithms for efficient conversion between maps on the sphere and their spherical harmonic coefficients. It supports a wide range of pixelisations (including HEALPix, GLESP, and ECP). This library is a successor of libpsht (http://sourceforge.net/projects/libpsht). A scientific overview over the functionality is given in the paper available at http://arxiv.org/abs/1303.4945.

MasQU is a code for calculating derivatives on grids with regular or irregular pixel distributions, using finite differences. Particularly, it is constructed to perform tensor-mode separation on the HEALPix spherical grid, but can be generalized.

A routine for converting GALPROP-generated HealPix skymaps to a compatible format which can be plotted by Aladin (v7), available from CDS at http://aladin.u-strasbg.fr. This allows free rotation of the sphere, avoiding the distortions of Aitoff and other projections often used. It is a very practical way to view and prepare skymap plots of GALPROP output. GALPROP outputs a spectrum per HealPix pixel, while Aladin requires each energy to be stored as a column.

Plot package for GALPROP https://sourceforge.net/projects/galprop Plots models and data for cosmic-ray spectra, secondary/primary ratios, gamma rays, synchrotron. Includes gamma-ray source population synthesis and corresponding plots. For gamma rays, convolves models with the Fermi-LAT response. This release is to assess interest. It requires many input data files (not included) which will be made available as required. With the data provided cosmic-ray spectra and ratios and source...

Libpsht is a collection of algorithms for efficient conversion between maps on the sphere and their spherical harmonic coefficients. It supports a wide range of pixelisations (including HEALPix, GLESP, and ECP). Development for this libary has stopped; its successor is libsharp (http://sourceforge.net/projects/libsharp).