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We present mid-infrared spectroscopy of Jupiter's mid-to-high latitudes usingGemini-North/TEXES (Texas Echelon Cross Echelle Spectrograph) on March 17-19,2017. These observations capture Jupiter's hydrocarbon auroral emissionsbefore, during and after the arrival of a solar wind compression on March 18th,which highlights the coupling between the polar stratosphere and external spaceenvironment. In comparing observations on March 17th and 19th, we observe abrightening of the CH$_4$, C$_2$H$_2$ and C$_2$H$_4$ emissions in regionsspatially coincident with the northern, duskside main auroral emission(henceforth, MAE). In inverting the spectra to derive atmospheric information,we determine that the duskside brightening results from an upper stratospheric(p < 0.1 mbar/z > 200 km) heating (e.g. $\Delta T$ = 9.1 $\pm$ 2.1 K at 9$\mu$bar at 67.5$^\circ$N, 162.5$^\circ$W) with negligible heating at deeperpressures. Our interpretation is that the arrival of the solar wind enhancementdrove magnetospheric dynamics through compression and/or viscous interactionson the flank. These dynamics accelerated currents and/or generated higherPoynting fluxes, which ultimately warmed the atmosphere through Joule heatingand ion-neutral collisions. Poleward of the southern MAE, temperatureretrievals demonstrate that auroral-related heating penetrates as deep as the10-mbar level, in contrast to poleward of the northern MAE, where heating isonly observed as deep as $\sim$3 mbar. We suggest this results from the southhaving higher Pedersen conductivities, and therefore stronger currents andacceleration of the neutrals, as well as the poleward heating overlapping withthe apex of Jupiter's circulation thereby inhibiting efficient horizontalmixing/advection.

A high spatial and spectral resolution study of Jupiter's mid-infrared auroral emissions and their response to a solar wind compression