Effect of improved atmospheric opacities in modelling sub-Neptunes - A case study for GJ 1214 b Jasmine MacKenzie, John Lee Grenfell, Philipp Baumeister, Nicola Tosi, Juan Cabrera and Heike Rauer A&A, 671 (2023) A65 Published online: 08 March 2023 DOI: 10.1051/0004-6361/202141784