A5009165352- Astro and Planetary Science
- Planetary Science and Exploration
- Geology and Paleoclimatology Research
- Solar and Space Plasma Dynamics
- Geomagnetism and Paleomagnetism Studies
- Stellar, planetary, and galactic studies
- Space Exploration and Technology
- Isotope Analysis in Ecology
- Astronomical Observations and Instrumentation
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- Spacecraft and Cryogenic Technologies
- Scientific Research and Discoveries
- Atmospheric Ozone and Climate
- Geophysics and Gravity Measurements
- Spacecraft Design and Technology
- Nuclear physics research studies
- Advanced Frequency and Time Standards
- Methane Hydrates and Related Phenomena
- Spacecraft Dynamics and Control
- NMR spectroscopy and applications
- Adaptive optics and wavefront sensing
- Gamma-ray bursts and supernovae
- Speech Recognition and Synthesis
- Ionosphere and magnetosphere dynamics
University of the Basque Country
2013-2024
Universidad Europea
2011
Ente Vasco de la Energía
2010
Abstract We describe a huge planetary‐scale disturbance in the highest‐speed Jovian jet at latitude 23.5°N that was first observed October 2016 during Juno perijove‐2 approach. An extraordinary outburst of four plumes involved development. They were located range planetographic latitudes from 22.2° to 23.0°N and moved faster than peak with eastward velocities 155 175 m s −1 . In wake plumes, turbulent pattern bright dark spots (wave number 20–25) formed progressed November on both sides jet,...
On 2009 July 19, we observed a single, large impact on Jupiter at planetocentric latitude of 55^{\circ}S. This and the Shoemaker-Levy 9 (SL9) impacts in 1994 are only planetary-scale ever observed. The had an entry trajectory opposite with lower incidence angle than that SL9. Comparison initial aerosol cloud debris properties, spanning 4,800 km east-west 2,500 north-south, those produced by SL9 fragments, dynamical calculations pre-impact orbit, indicate impactor was most probably icy body...
Abstract Jupiter’s Great Red Spot (GRS), a giant anticyclone, is the largest and longest‐lived of all vortices observed in planetary atmospheres. During its history, GRS has shrunk to half size since 1879, encountered many smaller anticyclones other dynamical features that interacted complex way. In 2018–2020, while having historically small size, structure even survival appeared be threatened when series moving from east tore off large fragments red area distorted shape. this work, we...
Here we report the discovery at upper cloud level of an extremely narrow and strong prograde jet, centered in middle broad equatorial jet. Measurements from images obtained by Cassini Imaging Science Subsystem (ISS) show that jet reaches 430 ms −1 ± 16 m s with a peak speed difference 180 relative to nearby latitudes 60 mbar 390 23 depths > 500 spanning ∼6° about equator . Contrarily what is observed other latitudes, its velocity increases altitude. This first kind be discovered on any...
Abstract The nature and mechanisms producing the chromophore agents that provide color to upper clouds hazes of atmospheres giant planets are largely unknown. In recent times, changes in red coloration have occurred large‐ medium‐scale Jovian anticyclones been particularly interesting. late June early July 2008, a intense tropical oval interacted with Great Red Spot (GRS) leading destruction cloud dispersion. We present detailed study vortices, usually white but sometimes red,...
Jupiter's Grat Red Spot (GRS) is the largest and longest-lived vortex of all solar system planets but its lifetime debated formation mechanism remains hidden. G. D. Cassini discovered in 1665 presence a dark oval at GRS latitude, known as "Permanent Spot" (PS) that was observed until 1713. We show from historical observations size evolution motions PS unlikely to correspond current GRS, first 1831. New numerical simulations rule out formed by merging vortices or superstorm, most likely flow...
Context. A peculiar atmospheric feature was observed in the equatorial zone (EZ) of Jupiter between September and December 2012 ground-based Hubble Space Telescope (HST) images. This consisted two low albedo Y-shaped cloud structures (Y1 Y2) oriented along equator centred on it (latitude 0.5°−1°N).
Abstract A rare red cyclone visible on Jupiter in 1994 and 1995 falls a class of vortices that are intensely colored, yet low altitude, unlike the Great Red Spot (GRS). Dynamical modeling indicates presence nearby anticyclones both aids formation lead to destruction cyclone. study absolute spectral reflectance from Hubble Space Telescope imaging data shows GRS is not typically “reddest” region planet. Rather, transient cyclones reddest parts North Equatorial Belt show less than at all...
On May 31, 2020 a convective storm appeared in one small cyclone the South Temperate Belt (STB) of Jupiter. The storm, nicknamed as Clyde's Spot, had an explosive start and quickly diminished activity few days. However, it left highly turbulent remnant that evolved to become segment STB time-scale year. A very similar erupted on August 7, 2021 another with initial phenomenology. In both cases, outbreaks started cyclones were result merger pre-existing vortices. previous paper we presented...