The α-element enrichment of gas in distant galaxies Anna Velichko, Annalisa De Cia, Christina Konstantopoulou, Cédric Ledoux, Jens-Kristian Krogager and Tanita Ramburuth-Hurt A&A, 685 (2024) A103 Published online: 15 May 2024 DOI: 10.1051/0004-6361/202348601