Spatially resolved [CII]-gas conversion factor in early galaxies

2025/04/18 by Vallini, L., Pallottini, A., Kohandel, M. +12 · 1 citation
#Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences

paper · doi:10.48550/arxiv.2504.14001

Abstract

Determining how efficiently gas collapses into stars at high-redshift is key to understanding galaxy evolution in the Epoch of Reionization (EoR). Globally, this process is quantified by the gas depletion time (t_dep); on resolved scales, by the slope and normalization of the Kennicutt-Schmidt (KS) relation. This work explores the global (α_[CII]) and spatially resolved (W_[CII]) [CII]-to-gas conversion factors at high-z and their role in inferring reliable gas masses, surface densities, and t_dep in the EoR. We select galaxies at 4

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