Category: Lectures

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 …

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

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 …

Read more “Fast Radio Bursts: Status and Big Data Challenges”

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 …

Read more “Characterising the dense molecular gas in galaxies”

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 …

Read more “Observing the Early Universe through Cosmic Magnetic Fields”

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 …

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

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 …

Read more “New Insights on Stellar Mass Assembly since the Dawn of Cosmic Time”

Prof. Dr. Michael Kremer, Invited Lecture, Fourth European Physical Society Conference on Gravitation: Black Holes, Valencia, Spain: This talk presents the recent evidence for a nHz-gravitational wave background that appears to originate from the superposition of signals emitted from supermassive black hole binaries during galaxy mergers in the early Universe. This discovery opens up a new …

Read more “The Hum of Space-Time : A New Window on Einstein’s Universe”

Prof. Dr. Frank Bigiel, Kinderuni Vorlesung (Children’s university lecture) Uni Bonn, Bonn, Deutschland: “Was sind Galaxien und Sterne und welche gibt es? Wie entstehen Sterne in Galaxien? Und vor allem: Wie kann man all das mit Teleskopen beobachten? Diesen und anderen spannenden Fragen gehen wir in unserer Astronomievorlesung der Kinderuni nach!” What are galaxies and …

Read more ““Galaxien und ihre Sterne” (Galaxies and their stars)”

Prof. Dr. Lucas Labadie, Guest professor, “The inner disk of young stars: accretion, ejection, and planet formation”, IESC, Cargèse, Corsica, France: Our understanding of the physical processes that regulate the evolution of the circumstellar environment of YSOs has made very significant progress in the last decade. For instance, the distribution of gas and dust in …

Read more “Future instrumental perspectives for the observational study of young stars”

Dr. Kai Polsterer, Invited Keynote, ASI 2023, Indore, India: The amount and size of astronomical data-sets was growing rapidly in the last decades. Now, with new technologies and dedicated survey telescopes, the databases are growing even faster. VO-standards provide uniform access to this data. What is still required is a new way to analyze and …

Read more “Accessing complex structures with unsupervised and deep-learning techniques”