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Chromospheric and coronal activity in solar-like stars
(Univ. Hamburg, 2008)
The term "stellar activity" summarizes a number of phenomena on the stellar surface and in the stellar atmosphere. The origin of many of these phenomena are changes in the structure of the stellar magnetic field. While ...
Studying martian dust devils by applying pattern recognition algorithms to multi-mission camera images
(Univ. Köln, 2007)
A pattern recognition and classification software was developed to detect dust devils automatically in surface images from Mars. The amount of images taken by spacecraft orbiting Mars is increasing continuously and the ...
Minimisation of optical pathlength noise for the detection of gravitational waves with the spaceborne laser interferometer LISA and LISA pathfinder
(Univ. Hannover, 2007)
Gravitational waves were predicted by Albert Einstein in 1916 as a consequence of his theory of general relativity. Hulse and Taylor provided indirect experimental evidence of their existence based on the increasing rotation ...
Cosmological backreaction
(Univ. Bielefeld, 2008)
Despite the glorious successes of modern cosmology, our understanding of the cosmic substitution is still limited to a tiny fraction (a few per cents only). Accelerated expansion of the Universe, caused by the mysterious ...
Existence and stability of stellardynamic models
(Univ. Bayreuth, 2008)
Airborne and ground level flask sampling for regional carbon budgets
(Univ. Hamburg, 2005)
Aim of the study was to test the capability of multiple trace gas analyses for the assessment of regional carbon budgets. Therefore, air samples were taken by airborne and ground level activities during several field ...
Lateral distribution of cosmic ray muons underground
(Univ. Siegen, 2006)
The CosmoALEPH experiment, located underground at the LEP e+e? storage ring at CERN at a depth of 320 m water equivalent, was used to study the chemical composition of primary cosmic rays up to 10 PeV energies from the ...
On the relevance of adhesion
(Univ. Potsdam, 2006)
Seit ihrer Entdeckung im Jahre 1610 durch Galileo Galilei faszinieren die Ringe des Saturn sowohl Laien als auch Experten. Planetare Ringe finden sich in der Äquatorialebene aller vier Riesenplaneten unseres Sonnensystems ...
Johann Heinrich Lamberts Cosmologische Briefe
(Univ. Bremen, 2007)
Lambert, cosmological letters, fixed stars, nebulae, island universe, teleology, teleological, enlightenment, enlightened, romanticism, romantic, hypothesis, physical-teleological, speculation, imagination, stability, solar ...
Aktive Regionen der Sonnenoberfläche und ihre zeitliche Variation in zweidimensionaler Spektro-Polarimetrie
(Univ. Potsdam, 2008)
Die Arbeit beschreibt die Analyse von Beobachtungen zweier Sonnenflecken in zweidimensionaler Spektro-Polarimetrie. Die Daten wurden mit dem Fabry-Pérot-Interferometer der Universität Göttingen am Vakuum-Turm-Teleskop auf ...