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Cophasing LINC-NIRVANA and molecular gas in low-luminosity QSO host and cluster galaxies
(Univ. Köln, 2007)
This thesis consists of two parts. The first part reports on the development of a fringe tracking system for LINC-NIRVANA, the near-infrared homothetic imaging camera for the Large Binocular Telescope (LBT). LINC-NIRVANA ...
Measurement of the energy spectrum of the BL Lac object PG1553+113 with the MAGIC telescope in 2005 and 2006
(Univ. Berlin, 2007)
In dieser Doktorarbeit wurden im Rahmen des MAGIC Experimentes neue Datenanalysemethoden implementiert, die sich insbesondere fuer die Analyse von Ereignissen niedriger Gammastrahlungsenergie eignen. Die Methoden konnten ...
Non-circular motions in dark matter halos
(Univ. Bochum, 2008)
Diese Dissertation untersucht, ob die Dynamik von Galaxien in Einklang mit den Ergebnissen aus CDM (cold dark matter) Simulationen ist. Im Wesentlichen wurden 19 Galaxien hinsichtlich Abweichungen von kreisförmigen Bewegungen ...
Modeling of Planetary Wave Influences on the Pre‐reversal Enhancement of the Equatorial F Region Vertical Plasma Drift
(
- Space Weather
, 2021-04-21)
Temporal and longitudinal variations of the pre‐reversal enhancement (PRE) in the equatorial F region vertical plasma drift are examined based on idealized simulations by the thermosphere‐ionosphere‐electrodynamics general ...
Climate Change Feedbacks in Aquaplanet Experiments With Explicit and Parametrized Convection for Horizontal Resolutions of 2,525 Up to 5 km
(
- Journal of Advances in Modeling Earth Systems
, 2019)
Earth's equilibrium climate sensitivity (ECS) is the long-term response to doubled atmospheric CO2 and likely between 1.5 and 4.5 K. Conventional general circulation models do not convincingly narrow down this range, and ...
The regional MiKlip decadal prediction system for Europe: Hindcast skill for extremes and user‐oriented variables
(
- International Journal of Climatology
, 2020-10-02)
Regional climate predictions for the next decade are gaining importance, as this period falls within the planning horizon of politics, economy, and society. The potential predictability of climate indices or extremes at ...
Influence of Radiation on Evaporation Rates: A Numerical Analysis
(
- Water Resources Research
, 2020-10-02)
We present a fully coupled soil‐atmosphere model that includes radiation in the energy balance of the coupling conditions between the two domains. The model is able to describe evaporation processes under the influence of ...
Self‐Validating Deep Learning for Recovering Terrestrial Water Storage From Gravity and Altimetry Measurements
(
- Geophysical Research Letters
, 2020-08-28)
Quantifying and monitoring terrestrial water storage (TWS) is an essential task for understanding the Earth's hydrosphere cycle, its susceptibility to climate change, and concurrent impacts for ecosystems, agriculture, and ...
A High‐Resolution Paleosecular Variation Record for Marine Isotope Stage 6 From Southeastern Black Sea Sediments
(
- Journal of Geophysical Research: Solid Earth
, 2021-03-23)
A full‐vector paleosecular variation (PSV) record (inclination, declination, and relative paleointensity) from the pen‐ultimate glacial (130–180 ka) could be constructed from a total of 12 sediment cores recovered from the ...
Star-disc encounters in young star clusters
(Univ. Köln, 2009)
According to current knowledge, star formation occurs preferentially in clustered environments. As a byproduct of the star formation process young stars are found to be surrounded by accretion discs that are potential birth ...