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The radial distribution of galactic gamma rays. III - The distribution of cosmic rays in the Galaxy and the CO-H2 calibration.

Strong, A. W.; Hermsen, W.; Lebrun, F. +7 more

High-energy (>70 MeV) gamma-ray observations are compared to H I and CO surveys over more than half of the Milky Way. The kinematics of both H I and CO are used as a distance indicator to determine, in combination with COS-B gamma-ray data, the galacto-centric distribution of the gamma-ray emissivity (the production rate per H atom) for three g…

Bootstrap sampling - Applications in gamma-ray astronomy

Mayer-Hasselwander, H.; Simpson, G.

Techniques for using bootstrap sampling (BS) methods to analyze cosmic gamma ray data are described. Sophisticated statistical techniques are required for gamma ray analyses because of the rarity of available data, i.e., only about 200,000 photons in the energy range 50-5000 MeV have been recorded to date. BS consists basically of randomly samplin…