6 papers
Detection of stratospheric HCN and tropospheric CO in Uranus and the implication for their sources
T. Cavalié, R. Moreno, C. Lefour +16
Uranus belongs to the category of ice giants that are common in our Galaxy. However, Uranus is one of the least explored and understood planets in our Solar System. This work aims…
The ocean worlds science case for the Pollux spectropolarimeter
Vincent Hue, Bilal Benmahi, Mathieu Barthelemy +9
Pollux is a candidate European instrument contribution to the Habitable Worlds Observatory (HWO), designed to advance our understanding of the formation and evolution of cosmic str…
Observations of the temporal evolution of Saturn's stratosphere following the Great Storm of 2010-2011. II. Latitudinal distribution of CO and stratospheric winds
T. Cavalié, R. Moreno, C. Lefour +8
Saturn's Great Storm of 2010-2011 has produced two stratospheric hot spots, the "beacons," that eventually merged to produce a gigantic one in April and May 2011. This beacon pertu…
Surveying exogenous species in Saturn with ALMA I. Detecting and Mapping CO
Deborah Bardet, Thierry Fouchet, Thibault Cavalié +5
The origin of carbon monoxide (CO) in Saturn's stratosphere remains uncertain, with proposed sources including internal thermochemical production, cometary impacts, and exogenic ma…
Spatial variability of CH4 and C2H2 absorptions in Jupiter's auroral regions from Juno-UVS observations
J. Vinesse, B. Bonfond, B. Benmahi +8
Color ratios derived from molecular hydrogen emissions provide valuable diagnostics for the energy of precipitating electrons and the structure of the auroral atmosphere. We aim to…
The Pedersen and Hall Conductances in the Jovian Polar Regions: New Maps based on a Broadband Electron Energy Distribution
G. Sicorello, D. Grodent, B. Bonfond +9
The ionospheric Pedersen and Hall conductances play an important role in understanding the exchanges of angular momentum, energy and matter between the magnetosphere and the ionosp…