Astrochemical modeling of the dense gas in galaxies: successes and challenges

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.

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New trends and developments in DGSEM: Robustness, efficiency, and application

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 …

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The Fornax Galaxy Cluster

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.

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“Astronomie und künstliche Intelligenz” (Astronomy and artificial intelligence)

Dr. Kai Polsterer, Invited Lecture, Planetarium Bochum, Bochum, Germany: “Vorangetrieben durch die Digitalisierung entsteht in den letzten Jahren eine wahre Flut an neuen Daten in fast allen Wissenschaften. Neben Beobachtungen von Teleskopen und theoretischen Studien sowie Simulationen etabliert sich die datengetriebene Wissenschaft als ein fundamentaler Bestandteil der Forschung.  Die Astronomie ist seit jeher ein sehr …

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“Das Summen der Raumzeit” (The humming of space-time)

Prof. Dr. Michael Kramer, Öffentlicher Abendvortrag (Public evening lecture) im Deutschen Museum, München, Deutschland: “Pulsare sind die natürlichen Leuchtfeuer des Weltalls. In rhythmischen, genau berechenbaren Pulsen (daher der Name) schweifen ihre Lichtkegel durch den Raum. Angetrieben von magnetisierten, rotierenden Neutronensternen – den dichtesten Objekten im beobachtbaren Universum – sind sie hochpräzise Uhrwerke, die kleinste Störungen …

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Fast Radio Bursts: Status and Big Data Challenges

Dr. Laura Spitler, Invited Lecture, Astroparticle Physics Seminar at DESY-Zeuthen, Germany: Fast Radio Bursts (FRBs) are a new class of radio transient whose astrophysical origin is not yet fully understood. Thanks to new telescopes that came online in the last 5 years, the number of FRB discoveries has exploded, yielding a population with a diverse …

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Characterising the dense molecular gas in galaxies

Prof. Dr. Serena Viti, Colloquium, Groningen, 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 …

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Observing the Early Universe through Cosmic Magnetic Fields

Prof. Dr. Jennifer Schober, Seminar, UCSB, Santa Barbara, USA: Magnetic fields are observed on virtually all astrophysical scales of the modern Universe, from planets and stars to galaxies and galaxy clusters. Observations of blazars suggest that even the intergalactic medium is permeated by magnetic fields. Such large-scale fields were most likely generated very shortly after …

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“Wie künstliche Intelligenz Astronomen bei der Arbeit hilft” (How artificial intelligence helps astronomers at work)

Dr. Kai Polsterer, Deutsche Museum Bonn: “Vorangetrieben durch die Digitalisierung, ist in den letzten Jahren eine wahre Flut an Daten in fast allen Wissenschaften zu beobachten. Neben empirischen und theoretischen Studien sowie Simulationen etabliert sich die datengetriebene Wissenschaft als ein fundamentaler Bestandteil der Forschung. Die Astronomie ist seit jeher ein sehr datenintensiver Forschungsbereich, der insbesondere …

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New Insights on Stellar Mass Assembly since the Dawn of Cosmic Time

Prof. Dr. Dominik Riechers, Plenary Lecture, Annual Meeting of the German Astronomical Society, Berlin, Germany: Detailed studies of distant galaxies down to sub-kiloparsec scales with powerful facilities like ALMA, combined with an overall measurement of the cold gas content of galaxies through cosmic history, have now provided strong evidence for the importance of gas flows …

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