60 citations · 342 across the 15 of their papers we have counts for
16 papers
Why the Northern Hemisphere Needs a 30-40 m Telescope and the Science at Stake: Key Targets of Opportunity on Gas and Ice Giants and their satellites
Ricardo Hueso, Leigh N. Fletcher, Damya Souami +15
The Extremely Large Telescope (ELT) will transform our knowledge of the outer planets and their satellite systems; however the visibility of unique targets of opportunity with high…
Dynamics of Saturn's Polar Regions
A. Antuñano, T. del Río-Gaztelurrutia, A. Sánchez-Lavega +1
We analyze data retrieved by the Imaging Science System onboard the Cassini spacecraft to study the horizontal velocity and vorticity fields of Saturn's Polar Regions (latitudes 60…
The long-term steady motion of Saturn's Hexagon and the stability of its enclosed jet-stream under seasonal changes
A. Sánchez-Lavega, T. del Río-Gaztelurrutia, R. Hueso +15
We investigate the long-term motion of Saturn's North-Pole Hexagon and the structure of its associated eastward jet, using Cassini ISS and ground-based images from 2008 to 2014. We…
Infrared Characterisation of Jupiter's Equatorial Disturbance Cycle
Arrate Antuñano, Leigh N. Fletcher, Glenn S. Orton +6
We use an infrared dataset captured between 1984 and 2017 using several instruments and observatories to report five rare equatorial disturbances that completely altered the appear…
An Enduring Rapidly Moving Storm as a Guide to Saturn's Equatorial Jet's Complex Structure
A. Sánchez-Lavega, E. García-Melendo, S. Perez-Hoyos +14
Saturn has an intense and broad eastward equatorial jet with a complex three-dimensional structure mixed with time variability. The equatorial region experiences strong seasonal in…
Investigating Thermal Contrasts Between Jupiter's Belts, Zones, and Polar Vortices with VLT/VISIR
Deborah Bardet, Padraig T. Donnelly, Leigh N. Fletcher +8
Using images at multiple mid-infrared wavelengths, acquired in May 2018 using the VISIR instrument on ESO's Very Large Telescope (VLT), we study Jupiter's pole-to-pole thermal, che…
Jupiter's cloud-level variability triggered by torsional oscillations in the interior
Kumiko Hori, Chris A. Jones, Arrate Antuñano +2
Jupiter's weather layer exhibits long-term and quasi-periodic cycles of meteorological activity that can completely change the appearance of its belts and zones. There are cycles w…
Saturn's Seasonal Variability from Four Decades of Ground-Based Mid-Infrared Observations
James S. D. Blake, Leigh N. Fletcher, Glenn S. Orton +8
A multi-decade record of ground-based mid-infrared (7-25 m) images of Saturn is used to explore seasonal and non-seasonal variability in thermal emission over more than a Saturn…
Unexpected Long-Term Variability in Jupiter's Tropospheric Temperatures
Glenn S. Orton, Arrate Antunano, Leigh N. Fletcher +9
An essential component of planetary climatology is knowledge of the tropospheric temperature field and its variability. Previous studies of Jupiter hinted at periodic behavior that…
Sub-Seasonal Variation in Neptune's Mid-Infrared Emission
Michael T. Roman, Leigh N. Fletcher, Glenn S. Orton +10
We present an analysis of all currently available ground-based imaging of Neptune in the mid-infrared. Dating between 2003 and 2020, the images reveal changes in Neptune's mid-infr…
Refining Saturn's deuterium-hydrogen ratio via IRTF/TEXES spectroscopy
James S. D. Blake, Leigh N. Fletcher, Thomas K. Greathouse +7
The abundance of deuterium in giant planet atmospheres provides constraints on the reservoirs of ices incorporated into these worlds during their formation and evolution. Motivated…
Saturn atmospheric dynamics one year after Cassini: Long-lived features and time variations in the drift of the Hexagon
R. Hueso, A. Sánchez-Lavega, J. F. Rojas +15
We examine Saturn's atmosphere with observations from ground-based telescopes and Hubble Space Telescope (HST). We present a detailed analysis of observations acquired during 2018.…
Jupiter's Atmospheric Variability from Long-Term Ground-based Observations at 5 microns
Arrate Antuñano, Leigh N. Fletcher, Glenn S. Orton +7
Jupiter's banded structure undergoes strong temporal variations, changing the visible and infrared appearance of the belts and zones in a complex and turbulent way due to physical…
Potential Vorticity of Saturn's Polar Regions: Seasonality and Instabilities
Arrate Antuñano, Teresa Del Río-Gaztelurrutia, Agustín Sánchez-Lavega +2
We analyse the potential vorticity of Saturn's polar regions, as it is a fundamental dynamical tracer that enables us to improve our understanding of the dynamics of these regions…
A Hexagon in Saturn's Northern Stratosphere Surrounding the Emerging Summertime Polar Vortex
L. N. Fletcher, G. S. Orton, J. A. Sinclair +13
Saturn's polar stratosphere exhibits the seasonal growth and dissipation of broad, warm, vortices poleward of latitude, which are strongest in the summer and absent…
Jupiter's Mesoscale Waves Observed at 5 m by Ground-Based Observations and Juno JIRAM
L. N. Fletcher, H. Melin, A. Adriani +12
We characterise the origin and evolution of a mesoscale wave pattern in Jupiter's North Equatorial Belt (NEB), detected for the first time at 5 m using a 2016-17 campaign of `lu…