Séminaire Univers / |
| « The radial acceleration relation and puzzles in galaxy scaling relations » |
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Stéphane Courteau |
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Galaxies like our Milky Way can be described in terms of their structure,
dynamics, and stellar populations. Some very robust correlations between galaxy structural properties, such as total luminosity, circular velocity, and size display rather small scatter, hinting at well-regulated galaxy formation processes. A major challenge to understanding these scaling relations, their tight scatter, and ultimately galaxy formation and evolution, is the elusive interplay between visible and dark matter. The radial acceleration relation is analysed in this context. I will present recent results on galaxy scaling relations in order to constrain modern structure formation models as well as the nature and distribution of dark matter in galaxies. |
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mardi 12 mai 2020 - 15:30 Webinaire Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |