Category: Lectures

Prof. Dr. Jennifer Schober, Invited Lecture, Conference “SynCRETism”, Rethymnon, Crete, Greece: Magnetic fields are observed on all astrophysical scales of the modern Universe, from planets and stars to galaxies and galaxy clusters. There are also hints of Mpc-scale magnetic fields in the intergalactic medium. Such large-scale fields, if confirmed, have most likely been generated shortly …

Read more “Observing the Big Bang with cosmic magnetic fields”

Prof. Dr. Serena Viti, Colloquium, Nimegen, Netherlands: Molecules are present in most astrophysical environments within galaxies and, beside having a key role in the formation and shaping of such galaxies, they are also ideal tracers of their physical characteristics. It is now well established that chemistry in external galaxies is rich and complex. In this …

Read more “Characterising the dense molecular gas in galaxies”

Jun.-Prof. Dr. Zorah Lähner, Colloquium, Math4DL Workshop, Cambridge, UK: When solving discrete problems with deep learning, making the problem differentiable is one of the core challenges. This talk will look at different problems sets with complex discrete aspects, for example permutation, and how a change in representation can make these problems feasible for optimisation with …

Read more “In Between the Discrete and Continuous in Neural Networks”

Prof. Dr. Amelie Saintonge, Invited Lecture, Großes Physikalisches Kolloquium, University of Cologne, Cologne, Germany: The interstellar medium plays a central role in the galaxy evolution process; it is the reservoir that fuels galaxy growth via star formation, the repository of material formed by these stars, and a sensitive tracer of internal and external processes that …

Read more “From cosmic web to molecular clouds: the multiple scales of galaxy evolution”

Prof. Dr. Serena Viti, Invited lecture, Conference “1st Nordic Meeting on Neutrino and Radio Astronomy”, Gothenburg, Sweden This talk will give an overview of the importance of cosmic rays in determining the chemistry of AGN.

Prof. Dr. Gregor Gassner, Colloquium, Trends in Scientific Computing, TU Dortmund, Dortmund, Germany: For marginally resolved simulations of non-linear PDEs, such as the compressible Navier-Stokes (NS) equations or the magnetohydrodynamics (MHD) equations, we observe that high order methods are prone to aliasing instabilities, which can lead to total failure and breakdown of the algorithms. Aliasing …

Read more “On the role of product and chain rules for the construction of modern structure preserving high order numerical methods”

Dr. Kai Polsterer, Colloquium, CSIRO, Perth, Australia: The amount, size, and complexity of astronomical data-sets is growing rapidly in the last decades. Now, with new technologies and dedicated survey telescopes, the databases are even growing faster. Besides dealing with poly-structed and complex data, sparse data has become a field of growing scientific interest. By applying …

Read more “From Supervised to Unsupervised ML: lessons learned from learning machines”

Prof. Dr. Thomas Reiprich, Invited Lecture, Cosmology Day Workshop, Bielefeld, Germany: Massive galaxy clusters are the youngest and, therefore, most massive objects in the Universe. Their dark matter-dominated gravitational potential wells are filled with gas, heated to 10s of millions of Kelvin by shocks and compression. The SRG/eROSITA X-ray space telescope recently surveyed the sky, …

Read more “eROSITA’s X-Ray Eyes Focused on the Dark Side of the Universe”

Prof. Dr. Michael Kramer, Invited Lecture, ECT* Symposium “The physics of strongly interacting matter: neutron stars, cold atomic gases and related systems”, Trento, Italy: Neutron stars are the densest objects in the observable universe.  Their studies is useful for a wide range of physics, but especially for probing the properties of super-dense matter. This talk …

Read more “Insight from radio observations of neutron stars”

Prof. Dr. Serena Viti, Invited Lecture, Conference “Raising the veil of star formation near and far”, Cambridge, UK: Molecules trace the dense gas in galaxies and, beside having a key role in the formation and shaping of such galaxies, they are also ideal tracers of their physical characteristics. It is now well established that chemistry …

Read more “Astrochemistry in nearby galaxies”