Am Montag, den 13. Mai 2024, um 12:00 Uhr c.t., findet der nächste Termin unseres Physikalischen Kolloquiums statt.
Referent ist Dr. Marcel Pawlowski (Leibniz-Institut für Astrophysik Potsdam) zum Thema „Dwarf Galaxies vs. Cosmology: Do They Dance To Λcdm’s Tune?“.
Dwarf satellite galaxy systems such as that of the Milky Way have emerged as a critical test cases for the cosmological standard model ΛCDM. They revealed intriguing small-scale challenges via comparisons to simulations. Notably, the persistent issue of satellite galaxies‘ unexpected spatial alignments and coherent velocities—known as the Planes of Satellite Galaxies Problem—stands as a
significant anomaly. Despite advancements in understanding through Gaia’s expansion of proper motion measurements and broader observational studies beyond our Local Group, these satellite phase-space correlations continue to spark heated debates regarding their implications for cosmology. I will introduce the research area of systems of satellite galaxies and review some of our recent progress regarding planes of satellite galaxies, asymmetrical distributions, and a potential too-many- satellites-problem.
Abstract des Vortrags von Dr. Pawlowski.
Die Einführung erfolgt durch Prof. Dr. Hendrik Hildebrandt.
Die Fakultät lädt alle Interessierten herzlich ein. Die Veranstaltung findet im Hörsaal HNB statt. Vor dem Kolloquium bieten wir Ihnen Kaffee und Kekse an.
Alle Termine des Physikalischen Kolloquiums finden Sie hier.