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A search for gamma-ray emission from the Galactic plane in the longitude range between 37 deg and 43 deg
HEGRA-Collaboration, F. Aharonian
Using the HEGRA system of imaging atmospheric Cherenkov telescopes, a region of the Galactic plane (-10 deg < b < 5 deg, 38 deg < l < 43 deg) was surveyed for TeV gamma-ray emissio…
Neutron-Capture Element Abundances and Cosmochronometry
C. Sneden
Abundance ratios of radioactive to stable neutron-capture elements in very metal-poor stars may be used to estimate the age of our Galaxy. But extracting accurate ages from these d…
First Measurement of Uranium/Thorium ratio in a very old Star: Implications for the age of the Galaxy
R. Cayrel
During an ESO-VLT large program devoted to high-resolution spectroscopy of extremely metal-poor stars selected from the H&K survey of Beers and colleagues, a [Fe/H] giant star was…
Myon Density Measurements with the KASCADE Central Detector
T. Antoni
Frequency distributions of local muon densities in high-energy extensive air-showers (EAS) are presented as signature of the primary cosmic ray energy spectrum in the knee region.…
Cosmic Rays in the Energy Range of the Knee - Recent Results from KASCADE --
K. -H. Kampert, KASCADE Collaboration
A brief motivation for studying cosmic rays at energies 10^14 < E < 10^17 eV is given. Besides astrophysical interests in identifying and understanding their sources, there are als…