Vertical compositional variations of liquid hydrocarbons in Titan’s alkanofers Daniel Cordier, David A. Bonhommeau, Tuan H. Vu, Mathieu Choukroun and Fernando García-Sánchez A&A, 653 (2021) A80 Published online: 10 September 2021 DOI: 10.1051/0004-6361/202140789