Escape and evolution of Titan's N${}_2$ atmosphere constrained by ${}^{14}$N/${}^{15}$N isotope ratios

N. V. Erkaev, M. Scherf, S. E. Thaller +4

We apply a 1D upper atmosphere model to study thermal escape of nitrogen over Titan's history. Significant thermal escape should have occurred very early for solar EUV fluxes 100 t…