activity
20242026
collaborators

6 papers

astro-ph.GA2026

The SPHINX public data release. II. Using low-ionisation absorption lines and dust attenuation to predict Lyman continuum escape

Valentin Mauerhofer, Jérémy Blaizot, Thibault Garel +11

Low-ionisation state (LIS) absorption lines, such as SiII 1526, are widely used to trace the properties of the interstellar medium (ISM) in galaxies. These lines provide crucial in…

astro-ph.GA2026

ARCHITECTS II: Impact of subgrid physics on the observable properties of the circumgalactic medium

Maxime Rey, Jérémy Blaizot, Taysun Kimm +3

Galaxy evolution is driven by star formation and stellar feedback on scales unresolved by current high-resolution cosmological simulations, requiring robust subgrid models. However…

astro-ph.GA2025

Black Hole merger rates in the first billion years in light of JWST data

P. F. V. Cáceres-Burgos, P. Dayal, P. Lira +3

Context. Recent James Webb Space Telescope (JWST) discoveries have unveiled an abundance of faint and massive Active Galactic Nuclei (AGNs) at high redshifts (z=4-9), that surpass…

astro-ph.GA2025

CLASSY XIII. Cutting through the Clouds - Comparing Indirect Tracers of Ionizing Photon Escape

Kaelee S. Parker, Danielle A. Berg, John Chisholm +25

The Epoch of Reionization (EoR) provides critical insights into the role of early galaxies in shaping the ionization state of the universe. However, because of the opacity of the i…

astro-ph.GA2025

Synergising semi-analytical models and hydrodynamical simulations to interpret JWST data from the first billion years

Valentin Mauerhofer, Pratika Dayal, Martin G. Haehnelt +3

The field of high redshift galaxy formation has been revolutionised by JWST, which is yielding unprecedented insights on galaxy assembly at early times. Our key aim is to study the…

astro-ph.GA2024

A Simulated Galaxy Laboratory: Exploring the Observational Effects on UV Spectral Absorption Line Measurements

R. Michael Jennings, Alaina Henry, Valentin Mauerhofer +13

Ultraviolet absorption line spectroscopy is a sensitive diagnostic for the properties of interstellar and circumgalactic gas. Down-the-barrel observations, where the absorption is…