Speaker
Description
The circulation of baryons and metals from the disk to the CGM and back again plays a fundamental role in the evolution of galaxies. This deep connection between disk and CGM plays out through an interface layer in the first several kpc above the disk. I will present new JWST/MIRE observations of PAH emission from this thickened interstellar disk of material in the edge-on galaxy NGC 891. We find PAH-emitting filaments and clouds to at least 8 kpc above the disk. We use computer vision-related techniques to identify and characterize filaments in the thick disk. Our analysis demonstrates that there is more filamentary power above heavily star forming regions, and that the star formation-connected filaments are vertically-oriented. This provides a path to quantifying the vertical scale over which large-scale fountain flows shape the thick disk and CGM as a function of star formation intensity.
| Primary Theme | Diffuse to dense structures |
|---|---|
| Secondary Theme | Galactic to intergalactic scales |
| Presenter's Name | Chris Howk |
| Presenter's Email Address | [email protected] |
| Keywords | Feedback, Disk Galaxies, Dust, Multiphase, Outflows, Galactic Fountains |
| 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? | No |
| If your fireslide/lighting talk is not accepted, would you be interested in presenting a poster? | No |
Author
External references
- 25070050
- 1b40364d-bd37-4fed-9eda-00f88a35e55c
