Auflistung Geophysik, Extraterrestische Forschung nach Erscheinungsdatum
Anzeige der Dokumente 1-20 von 483
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Predictions of planets for 586 exosystems and a method for predicting planets in multi-planetary exosystems
(, 2019)We have applied a model of planetary system formation in the field of a standing sound wave (the ‘SSW-Model’) to the prediction of planets in 586 multi-planetary exosystems (384 biplanetary, 127 tri-planetary and 75 ... -
Insights from recent gravity satellite missions in the density structure of continental margins – With focus on the passive margins of the South Atlantic
(Gondwana Research, 2017)We focus on new gravity and gravity gradient data sets from modern satellite missions GOCE, GRACE and CHAMP, and their geophysical interpretation at passive continental margins of the South Atlantic. Both sides, South ... -
Neue Möglichkeiten interaktiver 3-dimensionaler Modellierungen von Potentialfeldern und ihrer Ableitungen
(Frühjahrstagung 2015 "Versorgungssicherheit, Umwelt, Wettbewerbsfähigkeit - Welchen Beitrag leistet die E&P-Industrie?, 2015-04-22)Die hier dargestellten Methoden dienen der drei-dimensionalen, interaktiven Bearbeitung der Potentialfelder Gravimetrie und Magnetik, sowie ihrer Ableitungen (Schwere- und Magnetik-Tensor). Die Methodik ist sowohl für ... -
Charakterisierung hydrologischer Material-Eigenschaften mittels Multi Step Outflow (MSO) Experimenten
(, 2012-03-05)Die Kenntnis hydrologischer Eigenschaften ist essentiell für das Grundwassermanagement. Im Rahmen eines Projektes zur Verknüpfung mit elektrischen Eigenschaften, welche nicht-invasiv bestimmbar sind (Spektrale Induzierte ... -
Die Kalenderbriefe des Georg Albrecht Hamberger - im Kontext der Kalenderreform von 1700
(Univ.-Verl. Göttingen, Göttingen, 2012)Mit der päpstlichen Bulle Inter Gravissimas wurde 1582 der nach Papst Gregor XIII. benannte Gregorianische Kalender eingeführt. In Deutschland wurde dieser Kalender anfangs nur von katholisch regierten Ländern übernommen. ... -
Mineralogical analysis and iron abundance estimation of the Moon using the SIR-2, HySI and M3 spectrometers on-board the munar orbiter chandrayaan-1
(Techn. Univ. Zugl.: Clausthal, 2012)The work presented in this thesis is focused on mineralogical studies of the Moon aiming to create maps of iron abundances. We used the data from visible to near-infrared (VISNIR) spectrometers on-board Chandrayaan-1 ... -
Methods for the reconstruction of large scale anisotropies of the cosmic ray flux
(Univ. Siegen, 2010)In cosmic ray experiments the arrival directions, among other properties, of cosmic ray particles from detected air shower events are reconstructed. The question of uniformity in the distribution of arrival directions is ... -
Properties of quasistellar objects and their progenitors in the radio and mm wavelength regimes in the context of ULIRG-to-QSO evolution
(Univ. Köln, 2010)The thesis at hand presents the results of a study of galaxies with active galactic nuclei (AGN) carried out in the radio and mm wavelength regimes at low and high angular resolutions. The studied objects cover a broad ... -
Masses of small bodies - mass estimation of small solar system bodies using radio science data from close flybys
(Univ. Köln, 2010)The Radio Science technique enables to estimate the mass and other gravitational parameters of a solar system body from spacecraft observations very precisely. It uses the radio link between ground station and spacecraft. ... -
NanoSIMS analysis and high resolution electron microscopy of silicate stardust grains from red giant stars and supernova explosions
(Univ. Frankfurt (Main), 2009)This thesis deals with the analysis of presolar silicates and oxides by high resolution mass spectrometry and electron microscopy techniques. This stardust was identified by its extreme oxygen isotopic anomalies, which ... -
Multi-telescope studies of neutron stars
(Univ. Köln, 2009)Neutron stars are unique stellar remnants with extreme properties, as their density and magnetic field. Their study can be the key to a number of unanswered problems in fundamental physics and astronomy, ranging from stellar ... -
Karbonat- und Lignitzyklen im Ptolemais-Becken: orbitale Steuerung und suborbitale Variabilität (Spätneogen, NW-Griechenland) - sedimentologische Fallstudie unter Berücksichtigung gesteinsmagnetischer Eigenschaften
(Univ. Köln, 2009)Die mio-pliozänen Ablagerungen im NNW SSE streichenden Monastir-Florina-Ptolemais-Kozani/Servia-Graben beherbergen das größte zusammenhängende Braunkohlevorkommen in Bereich des Balkans. Das Becken erstreckt sich von ... -
Searching for solar axions in the eV-mass region with the CCD detector at CAST
(Univ. Freiburg (Breisgau), 2009)The CERN Axion Solar Telescope (CAST) is searching for solar axions, which could be produced in the core of the Sun via the so-called Primakoff effect. For this purpose, CAST uses a decommissioned LHC prototype magnet. In ... -
Characterization of the stellar variability in CoRoT fields with BEST telescopes
(Univ. Berlin, 2009)The first extrasolar planet 51 Peg b around the G-type star has been reported in 1995. The planet with few Jupiter masses orbiting its star very closely was detected by measurement of the oscillation in the radial velocity ... -
The fate of singularities in quantum cosmology and the application of generalized effective equations to constrained quantum systems
(Univ. Köln, 2009)The first part of the thesis is concerned with the fate of singularities in quantum cosmology. The second part addresses the derivation of predictions from quantum cosmology. In the first part, two classes of cosmological ... -
The structure and spectra of irradiated secondaries in close binaries (pre-CVs)
(Univ. Hamburg, 2009)Many stars evolve not alone but along one or more companions. While the evolution of single isolated stars is well predicted by theoretical calculations, close binary systems with their interactions are on the one hand far ... -
Modeling light curves of type Ia supernovae
(Univ. Hamburg, 2009)The main topic of this work is the introduction of time dependence into PHOENIX. This has been achieved for both the radiation field and the matter in the SN Ia model atmosphere. First, time dependence in the radiative ... -
Constraining the UV background with the proximity effect
(Univ. Potsdam, 2009)After the epoch of reionisation the intergalactic medium (IGM) is kept at a high photoionisation level by the cosmic UV background radiation field. Primarily composed of the integrated contribution of quasars and young ... -
Zeeman-Doppler Imaging of active late-type stars
(Univ. Potsdam, 2009)Stellar magnetic fields, as a crucial component of star formation and evolution, evade direct observation at least with current and near future instruments. However investigating whether magnetic fields are generated by a ...