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Developing a ground-based search system for transits of extrasolar planets
(Univ. Berlin, 2006)
The search for extrasolar planets is a relatively new field in astronomical and astrophysical sciences that was boosted by the first discovery of the exoplanet 51 Peg b in 1995 by radial velocity measurements. The short ...
Assessing the fidelity of the marine sedimentary magnetic record
(Univ. Bremen, 2008)
Marine sediments, diagenesis, anoxic environments, paleomagnetism, low-temperature magnetism, magnetic Fe-Ti-Oxides. - Magnetic particles usually occur in very minor concentrations in igneous and sedimentary rocks, soils, ...
Constraining uncertainty in climate sensitivity
(Univ. Potsdam, 2006)
Eine der entscheidenden Hauptquellen für Unsicherheiten von Klimaprojektionen ist, wie sensitiv das Klimasystem auf Änderungen der Strahlungsbilanz der Erde reagiert. Angesichts des kontinuierlichen Anstiegs der atmosphärischen ...
Development of pull apart basins and associated structures by the Riedel shear mechanism
(Univ. Bochum, 2006)
Die physikalischen und mechanischen Eigenschaften von tonartigen Materialien, die für die Skalierung von Analogexperimenten relevant sind, werden mit Hilfe von Konzepten der modernen Bodenmechanik analysiert. Ein Verfahren ...
Differentiation of asteroids in the early solar system from Hf-W systematics
(Univ. Köln, 2008)
The first major differentiation in primitive planetesimals is the formation of metal- or metal-sulfide cores. To constrain the time of asteroidal differentiation, meteoritic metals and silicates coexisting with metals were ...
The structure and interaction history of moderate luminosity mergers
(Univ. Bochum, 2006)
Wechselwirkungen und insbesondere Kollisionen von Galaxien sind zwei der wichtigsten Elemente der Galaxienentwicklung. Bisher lag das Hauptaugenmerk auf der Untersuchung von Kollisionen von Spiralgalaxien (S+S). In der ...
The sub-damped Ly a system [alpha system] toward HE 0515-4414
(Univ. Hamburg, 2006)
Context Extragalactic absorbers with column densities exceeding NH I > 2 × 1020 hydrogen atoms cm-2 are generally termed damped Ly alpha (DLA) systems. The absorbers are basically comprised of predominantly neutral gas, ...
Traveltime computation and migration in anisotropic media
(Univ. Hamburg, 2007)
For seismic imaging of complex 3-D structures by e.g. prestack Kirchhoff depth migration large amounts of traveltime tables are required. This work provides a wavefront-oriented ray tracing technique for multi-valued ...
An adaptive shallow water model on the sphere
(Univ. Bremen, 2009)
This thesis describes the adaptive shallow water model PLASMA-FEMmE. It solves on the sphere the shallow water equations, the prototype for partial differential equations in atmospheric modeling, using a semi-implicit ...
Die Niederschlags- und Starkregenentwicklung der letzten 100 Jahre im Mitteldeutschen Trockengebiet als Indikatoren möglicher Klimaänderungen
(Univ. Halle, 2007)
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