Comets ${}^{12}$CO${}^{+}$ and ${}^{13}$CO${}^{+}$ fluorescence models for measuring the ${}^{12}$C/${}^{13}$C isotopic ratio in CO${}^{+}$

Philippe Rousselot, Emmanuel Jehin, Damien Hutsemékers +3

Context: CO is an abundant species in comets, creating CO${}^{+}$ ion with emission lines that can be observed in the optical spectral range. A good modeling of its fluorescence spectr…