  Hot Jupiters may have formed in situ, or been delivered to their observed
short periods through one of two categories of migration mechanisms: disk
migration or high-eccentricity migration. If hot Jupiters were delivered by
high-eccentricity migration, we would expect to observe some "super-eccentric"
Jupiters in the process of migrating. We update a prediction for the number of
super-eccentric Jupiters we would expect to observe in the Kepler sample if all
hot Jupiters migrated through high-eccentricity migration and estimate the true
number observed by Kepler. We find that the observations fail to match the
prediction from high-eccentricity migration with 94.3% confidence and show that
high-eccentricity migration can account for at most ~62% of the hot Jupiters
discovered by Kepler.
