The ESO SupJup Survey IV. Unveiling the carbon isotope ratio of GQ Lup B and its host star

D. González Picos, I. A. G. Snellen, S. de Regt +4

The carbon isotope ratio (${}^{12}\mathrm{C}{/}^{13}\mathrm{C}$) is a potential tracer of giant planet and brown dwarf formation. The GQ Lup system, hosting the K7 T Tauri star GQ Lup…