Search Results for "gamma"

Cosmic ray electrons scatter on the photon fields around stars, including the sun, to create gamma rays by the inverse Compton effect. This program computes the spectrum and angular distribution of this emission. The software also includes general-purpose routines for inverse Compton scattering on a given electron spectrum, for example for interstellar or astrophysical source modelling. For further information see these publications: http://arxiv.org/abs/astro-ph/0607563, http://arxiv.org/abs/0801.2178, http://arxiv.org/abs/1104.2093, http://adsabs.harvard.edu/abs/2013NuPhS.239..266O and this conference presentation: https://confluence.slac.stanford.edu/download/attachments/130879399/poster_symposium_sun_2012.pdf and the corresponding conference paper http://arxiv.org/abs/1307.6798 2017 June 16: now available from gitlab https://gitlab.mpcdf.mpg.de/aws/stellarics which will be used for future develpments.

Software for cosmic-ray propagation, gamma-rays, synchrotron. 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. ...

*WARNING* gtburst moved to github (https://github.com/giacomov/gtburst). ########################################## gtBurst is a tool to download data, analyze and simulate Gamma-ray Bursts and Solar Flares as observed by the NASA Fermi satellite.

This library contains the parametrization of pp->gamma cross section functions based on Phys.Rev. D90 (2014) 12, 123014 (astro-ph/1406.7369) work. The functions are written in Python, Fortran and Matlab. Please, if you use this library DO NOT reference to this webpage, instead reference to Phys.Rev. D90 (2014) 12, 123014 (astro-ph/1406.7369), "Parametrization of gamma-ray production cross-sections for pp interactions in a broad proton energy range from the kinematic threshold to PeV energies" by Ervin Kafexhiu, Felix Aharonian, Andrew M. ...

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 population synthesis will work. ...

Cosmic-ray hadronic interaction matrices for gamma-ray and other secondaries for an interstellar medium target are available as described in Huang et al. Astroparticle Physics, 27, 429 (2007). These require significant effort in practice to compute emissivities for given input spectra. To supplement these matrices I provide here a C++ class which reads the matrices, interpolates on user-defined particle and gamma-ray energy grids, and computes the gamma-ray emissivity either differential or in user-defined bands. ...

A C++ version of the public GALPROP (http://galprop.stanford.edu) routine to compute non-thermal bremsstrahlung, with added features to compute the gamma-ray emissivity either differential or in user-defined bands.

Oree - Optimum Real-time Estimation of Events of Interaction: real-time reconstruction of photon interaction events in Gamma Cameras. Optionally making use of a CUDA enable GPU, Oree achieves reconstruction of over 1M events/sec.

Open source development of a tool for the astronomy community to interact with the GRB Coordinates Network (GCN) broadcast of real-time gamma-ray burst (GRB) and X-ray Flash (XRF) information. Support for satellite packets: HETE-2, Integral, Swift