Speaker
Description
In the recent decade, the CGM has progressively emerged as the complex interface between large-scale structures, in particular cosmic filaments, and central galaxies and their satellites. In this presentation, I will first review the evidence that even halos at least as massive as the Milky Ways and up to cluster scale, show z=0 anisotropies inherited from the cosmic web present across the properties of their CGM gas and their distribution of satellites, with significant impact on satellite galaxies' gas reservoirs and star formation rates. I will then show that some of the most striking anisotropies detected to this date, the so-called "planes of satellites" around Milky-Way mass systems are actually a natural occurence in NewHorizon, a hydrodynamical simulation that combines optimally cosmological volume and resolution. I will show that their origin is strongly tied to the dynamics of the cosmic web across time and scales, with specific contributions from filament mergers on the one hand and small-scale streams formed in their midst through a cascade of shocks on the other hand. I will discuss implications for the future of investigations of the cosmic web, highlighting in particular the importance of detecting smaller scale filaments in observations with next-generations surveys like LSST or EUCLID.
| Primary Theme | Small to large scales |
|---|---|
| Secondary Theme | Galactic to intergalactic scales |
| Presenter's Name | Charlotte Welker |
| Presenter's Email Address | [email protected] |
| Keywords | galaxies - cosmic web - dwarf galaxies |
| Recording Permission | YES |
| Virtual Audience Permission | YES |
| Photography Permission | YES |
| If your talk is not accepted for a contributed talk, would you be interested in presenting a fireslide/lightning talk? | Yes |
| If your fireslide/lighting talk is not accepted, would you be interested in presenting a poster? | Yes |
Authors
Co-author
External references
- 25070016
- f1da96d5-63dd-4a1c-94a7-aa48571b0575
