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Related papers: Coherent dust cloud observed by three Cassini inst…

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We revisit the evidence for a "dust cloud" observed by the Cassini spacecraft at Saturn in 2006. The data of four instruments are simultaneously compared to interpret the signatures of a coherent swarm of dust that would have remained near…

Earth and Planetary Astrophysics · Physics 2020-05-04 Emil Khalisi

We present the impact rates of dust particles recorded by the Cosmic Dust Analyzer (CDA) aboard the Cassini spacecraft. The "dust counters" evaluate the quality of an impact and give rise to the apparent density of dust particles in space.…

Earth and Planetary Astrophysics · Physics 2015-01-06 Emil Khalisi , Ralf Srama , Eberhard Grün

We present an analysis of data about Saturn's atmosphere from Cassini's Visual and Infrared Mapping Spectrometer (VIMS), focusing on the meteorology of the features seen in the 5-micron spectral window. We present VIMS mosaics and discuss…

Earth and Planetary Astrophysics · Physics 2013-01-28 David S. Choi , Adam P. Showman , Robert H. Brown

We describe a search for dust created in collisions between the Saturnian irregular satellites using archival \emph{Spitzer} MIPS observations. Although we detected a degree scale Saturn-centric excess that might be attributed to an…

Earth and Planetary Astrophysics · Physics 2013-11-07 Grant M. Kennedy , Mark C. Wyatt , Kate Y. L. Su , John A. Stansberry

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. A system of polar storms that appeared in the planet in…

In June 2015, Cassini high-resolution images of Saturn's limb southwards of the planet's hexagonal wave revealed a system of at least six stacked haze layers above the upper cloud deck. Here, we characterize those haze layers and discuss…

The longevity of Cassini's exploration of Saturn's atmosphere (a third of a Saturnian year) means that we have been able to track the seasonal evolution of atmospheric temperatures, chemistry and cloud opacity over almost every season, from…

Earth and Planetary Astrophysics · Physics 2015-10-21 Leigh N. Fletcher , Thomas K. Greathouse , Julianne I. Moses , Sandrine Guerlet , Robert A. West

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 60-90$^\circ$N in June-December 2013 and 60-90$^\circ$S in…

Earth and Planetary Astrophysics · Physics 2024-02-13 A. Antuñano , T. del Río-Gaztelurrutia , A. Sánchez-Lavega , R. Hueso

The lightning activity in Saturn's atmosphere has been monitored by Cassini for more than six years. The continuous observations of the radio signatures called SEDs (Saturn Electrostatic Discharges) combine favorably with imaging…

Earth and Planetary Astrophysics · Physics 2011-11-22 G. Fischer , U. A. Dyudina , W. S. Kurth , D. A. Gurnett , P. Zarka , T. Barry , M. Delcroix , C. Go , D. Peach , R. Vandebergh , A. Wesley

Cassini spacecraft observations of Saturn in 2006 revealed south polar cloud shadows, the common interpretation of which was initiated by Dyudina et al. (2008, Science 319, 1801) who suggested they were being cast by concentric cloud walls,…

Earth and Planetary Astrophysics · Physics 2019-08-23 Lawrence A. Sromovsky , Patrick M. Fry , Kevin H. Baines

A clustering algorithm is applied to Cassini Imaging Science Subsystem continuum and methane band images of Saturns northern hemisphere to objectively classify regional albedo features and aid in their dynamical interpretation. The…

Earth and Planetary Astrophysics · Physics 2017-09-26 Anthony D. Del Genio , John M. Barbara

Plasma rotation plays a large role in determining the size and shape of Saturn's disc-like magnetosphere. A magnetosphere more confined to the equator in the polar regions is expected as a result of the interaction between this type of…

Saturn's C ring contains multiple structures that appear to be density waves driven by time-variable anomalies in the planet's gravitational field. Semi-empirical extensions of density wave theory enable the observed wave properties to be…

Earth and Planetary Astrophysics · Physics 2022-01-24 M. M. Hedman , P. D. Nicholson , M. El Moutamid , S. Smotherman

We report the detection of small scale bending waves, also known as corrugations, in the dust lanes of five nearby edge-on disc galaxies. This phenomenon, where the disc mid-plane bends to become wavy, just as in warps but on a smaller…

Astrophysics of Galaxies · Physics 2020-06-03 Chaitra A. Narayan , Ralf-Juergen Dettmar , Kanak Saha

The solar system contains solids of all sizes, ranging from km-size bodies to nano-sized particles. Nanograins have been detected in situ in the Earth's atmosphere, near cometary and giant planet environments, and more recently in the solar…

Earth and Planetary Astrophysics · Physics 2015-06-12 P. Schippers , N. Meyer-Vernet , A. Lecacheux , S. Belheouane , M. Moncuquet , W. S. Kurth , I. Mann , D. G. Mitchell , N. André

How deep do Saturn's zonal winds penetrate below the cloud-level has been a decades-long question, with important implications not only for the atmospheric dynamics, but also for the interior density structure, composition, magnetic field…

Earth and Planetary Astrophysics · Physics 2019-02-13 Eli Galanti , Yohai Kaspi , Yamila Miguel , Tristan Guillot , Daniele Durante , Paolo Racioppa , Luciano Iess

In its decade of operation the Cassini mission has allowed us to look deep into Saturn's atmosphere and investigate the processes occurring below its enshrouding haze. We use Visual and Infrared Mapping Spectrometer (VIMS) 4.6-5.2 micron…

Earth and Planetary Astrophysics · Physics 2016-02-16 Joanna K Barstow , Patrick G. J. Irwin , Leigh N. Fletcher , Rohini S. Giles , Cecile Merlet

Motivated by observations of localized electrostatic wavepackets by the Voyager 1 and 2 and Cassini missions in Saturn's magnetosphere, we have investigated the evolution of modulated electrostatic wavepackets in a dusty plasma environment.…

Plasma Physics · Physics 2023-03-17 Kuldeep Singh , Michael McKerr , Ioannis Kourakis

Planets have been detected in circumbinary orbits in several different systems, despite the additional challenges faced during their formation in such an environment. We investigate the possibility of planetary formation in the…

Earth and Planetary Astrophysics · Physics 2022-08-24 N. T. Kurtovic , P. Pinilla , Anna B. T. Penzlin , M. Benisty , L. Pérez , C. Ginski , A. Isella , W. Kley , F. Menard , S. Pérez , A. Bayo
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