Category: Lectures

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. 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”

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, Workshop “Molecular Astrophysics: recent successes and future challenges” , Deauville, France: This talk highlights the current available methodologies in interpreting molecular emission from dense gas in galaxies, including their challenges and successes.

Prof. Dr. Gregor Gassner, Colloquium, DLR Braunschweig, Germany: n this talk, we present the newest developments for discontinuous Galerkin spectral element methods applied to advection dominated problems, such as the compressible Navier-Stokes equations. The talk includes the numerical stability analysis of the method, some turbulence modelling aspects and considerations, limiting strategies based on compatible Legendre-Gauss-Lobatto …

Read more “New trends and developments in DGSEM: Robustness, efficiency, and application”

Prof. Dr. Thomas Reiprich, Lecture, eROSITA-DE consortium meeting, Garching, Germany: An X-ray analysis of the hot gas in the Fornax galaxy cluster is presented.