14–18 Jul 2025
Leibniz Institute for Astrophysics Potsdam (AIP)
Europe/Berlin timezone

Connecting the turbulent circumgalactic medium to star formation in galaxies

Not scheduled
20m
Conference Room, Maria-Margaretha-Kirch building (Leibniz Institute for Astrophysics Potsdam (AIP))

Conference Room, Maria-Margaretha-Kirch building

Leibniz Institute for Astrophysics Potsdam (AIP)

An der Sternwarte 16 14482 Potsdam, Germany
Talk Circumgalactic medium and multiphase gas

Speaker

Hsiao-Wen Chen (The University of Chicago)

Description

The CGM and IGM contain fuel for future star formation and a record of past feedback. They are uniquely sensitive to the physics of baryonic flows. Diffuse, ionized plasmas such as the CGM are expected to be turbulent, because of the expected high Reynolds number. The presence and magnitude of this turbulence have profound implications for the sources that drive the thermal and dynamic properties of the gas. This presentation will delve into recent empirical findings on the turbulent CGM around galaxies of different start formation histories and quasars. Combining high-resolution absorption spectroscopy and deep galaxy survey data from the Cosmic Ultraviolet Baryon Survey (CUBS) enables spatially and spectrally resolved studies of the density structures, patchy chemical enrichment, and turbulent energy cascade in the multiphase CGM. The discussion will also touch upon expanding this study to high redshift and its connection to CGM properties at z>6 uncovered by the JWST, using new data from the upcoming Cycle 31 Large Program, Circumgalactic Observations of Nuv-shifted Transitions Across Cosmic Time (CONTACT).

Primary author

Hsiao-Wen Chen (The University of Chicago)

Presentation materials

There are no materials yet.