Fredagskollokvium: Genetically modifying dwarf galaxies

Andrew Pontzen, University College London (UK)

portrettbildet av en ung man med briller
Prof. Andrew Pontzen, University College London (UK).

Understanding dwarf galaxies is crucial for verifying and improving our broader picture of galaxy formation in the universe. They contain so few stars that their gravitational effects are almost entirely dominated by dark matter. They are also exquisitely sensitive to stellar processes that can heat and eject gas, which in turn prevent further stars from forming.

The combination of these two factors make them enticing and yet challenging to study: they hold the potential to help identify the nature of dark matter, but first we must vastly improve our understanding of the interaction between stars, interstellar medium, and the universe beyond.

I will review recent observational and theoretical progress in these areas, including through the “genetically modified galaxies” programme, which focuses on how the formation history of galaxies determine their present-day properties. 

bildecollage av galakser og stjerner i universet
A series of tiny dwarf galaxies within the “cosmic web”, simulated at high resolution by the EDGE collaboration. Credit: Matthew Orkney / EDGE collaboration (arXiv 2101.02688)

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Meeting ID: 640 5963 9022
Passcode: 190913

Emneord: institute seminar, cosmology, fredagskollokvium, Kosmologi, cosmic web, Galakser, Galaxies
Publisert 21. mai 2021 15:16 - Sist endret 23. juni 2021 10:31