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205 papers · 1 filter
Did Most High-Redshift Quasars Escape Detection?
C. Wolf, K. Meisenheimer, H. -J. Roeser +1
We present follow-up spectroscopy to the Calar Alto Deep Imaging Survey (CADIS), reporting on the quasars in the CADIS 16h-field, and including preliminary data from two other fiel…
Infrared Spectra of Meteoritic SiC Grains
A. C. Andersen, C. Jager, H. Mutschke +5
We present here the first infrared spectra of meteoritic SiC grains. The mid-infrared transmission spectra of meteoritic SiC grains isolated from the Murchison meteorite were measu…
The detection of extragalactic N: Consequences for nitrogen nucleosynthesis and chemical evolution
Yi-nan Chin, Christian Henkel, Norbert Langer +1
Detections of extragalactic N are reported from observations of the rare hydrogen cyanide isotope HCN toward the Large Magellanic Cloud (LMC) and the core of the (pos…
Measurement of D* Meson Cross Sections at HERA and Determination of the Gluon Density in the Proton using NLO QCD
C. Adloff
With the H1 detector at the ep collider HERA, D* meson production cross sections have been measured in deep inelastic scattering with four-momentum transfers Q^2>2 GeV2 and in phot…
The time structure of Cherenkov images generated by TeV gamma-rays and by cosmic rays
HEGRA Collaboration, M. Hess et al
The time profiles of Cherenkov images of cosmic-ray showers and of gamma-ray showers are investigated, using data gathered with the HEGRA system of imaging atmospheric Cherenkov te…
Polyelectrolytes in Solution - Recent Computer Simulations
Christian Holm, Kurt Kremer
We present a short overview over recent MD simulations of systems of fully flexible polyelectrolyte chains with explicitly treated counter ions using the full Coulomb potential. Th…