Alex Teachey (ASIAA)
To date the search for exomoon signatures in time-domain photometry has largely focused on single-moon systems. Adopting this simplified model has been mostly well-justified, but it nevertheless presents potential problems in detecting the analogs of outer Solar System satellites in exoplanetary systems. This could in turn affect our capacity for making inferences about the moon population and the dynamical evolution of their host star systems. In this work we utilize N-body simulations of plausible multi-moon systems to examine the detectability of their dynamical signatures and the applicability of the so-called "exomoon corridor" finding (Kipping 2021) to N > 1 moon systems. Our results suggest the expected distribution of measured transit timing variation periods holds in the more general case, but that other effects may confuse this picture, and that multi-moon systems will be generally more difficult to detect owing to lower satellite mass ratios on average.