Jupiter displays many distinct auroral structures, among which auroral
dawn storms and auroral injections are often observed contemporaneously.
However, it is unclear if the contemporaneous nature of the observations
is a coincidence or part of an underlying physical connection. We show
six clear examples from a recent Hubble Space Telescope campaign
(GO-14634) that each display both auroral dawn storms and auroral
injection signatures. We found that these conjugate phenomena could
exist during intervals of either relatively low or high auroral
activity, as evidenced by the varied levels of total auroral power.
In-situ observations of the magnetosphere by Juno, show a strong
magnetic reconnection event inside of 45 Jupiter Radii (RJ) on the
predawn sector, followed by two dipolarization events within the
following two hours, coincident with the auroral dawn storm and auroral
injection event. We therefore suggest that the auroral dawn storm is the
manifestation of magnetic reconnection in the dawnside magnetosphere.
The dipolarization region mapped to the auroral injection, strongly
suggesting that this was associated with the auroral injection. Since
magnetic reconnection and dipolarization are physically connected, we
therefore suggest that the often-conjugate auroral dawn storm and
auroral injection events are also physically connected consequences.