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Since ancient times, the problem to explain the origin of our Universe and
the further fate of our world is one of the most fascinating scientific
questions among all. Modern cosmology has now developed a standard model
for cosmic structure formation that is based on the postulated existence of
new forms of matter and energy, the so-called dark matter and dark energy.
The theoretical studies of Volker Springel play an important role for the
further development and the testing of this theory. His numerical
calculations on supercomputers allow a study of the evolution of the
Universe since the Big Bang, over a period of more than 13 billion years,
under the influence of dark matter and dark energy. Only with such detailed
calculations it is possible to decypher the complex physical processes of
galaxy formation and to make precise predictions for the distribution of
matter in space, for the abundance of galaxies of different sizes and
shapes, or for the history of cosmic star formation. The numerical package
GADGET developed by Springel for this purpose has meanwhile become the most
successful tool of its kind and is used by research groups around the
world.
Using simulations that also included the evolution of supermassive black
holes, Springel could directly show that these enormous gravity traps at
the centres of galaxies have an important influence on their host galaxies.
During the coalescence of galaxies large amounts of hydrogen and helium gas
are driven to the galactic centre, where it becomes available to feed the
black hole. This allows the black hole to grow rapidly in mass and shine
with high luminosity as a quasar. The local energy deposition eventually
expells a significant part of the gas, causing the quasar to die, and
leaving behind an elliptical galaxy which has nearly lost the ability to
form young stars.
The Klung-Wilhelmy-Weberbank-Prize is one of the most highly endowed
privately funded scientific prizes. Since 2001 the prize is awarded as part
of a cooperation between the Otto-Klung-Foundation at the Freie Universität
Berlin and the Weberbank, alternating every year for a physicist or a
chemist. In the year 2007, the Dr. Wilhelm-Foundation joined the prize. The
decision for Springel was made following a proposal by the selection
committee, chaired by Prof. Günter Kaindl, at the Department of Physics of
the Freie Universität Berlin.
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