English
Related papers

Related papers: An objective classification of Saturn cloud featur…

200 papers

We have analyzed the complete archive of the Visual and Infrared Mapping Spectrometer (VIMS) data in order to monitor and analyze the evolution of the clouds and haze coverage at both poles of Titan during the entire Cassini mission. Our…

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 planet's Lyman-{\alpha} (Ly{\alpha}) emission is sensitive to its thermospheric structure. Here, we report joint Hubble Space Telescope (HST) and Cassini cross-calibration observations of the Saturn Ly{\alpha} emission made two weeks…

Earth and Planetary Astrophysics · Physics 2023-11-27 Lotfi Ben-Jaffel , Julie Moses , Robert A. West , M-K. aye , Eric T. Bradley , John T. Clarke , Jay B. Holber , Gilda E. Ballester

We describe a powerful signal processing method, the continuous wavelet transform, and use it to analyze radial structure in Cassini ISS images of Saturn's rings. Wavelet analysis locally separates signal components in frequency space,…

The incredible longevity of Cassini's orbital mission at Saturn has provided the most comprehensive exploration of a seasonal giant planet to date. This review explores Saturn's changing global temperatures, composition, and aerosol…

Earth and Planetary Astrophysics · Physics 2023-05-09 L. N. Fletcher , L. Sromovsky , V. Hue , J. I. Moses , S. Guerlet , R. A. West , T. Koskinen

Saturn's geometric magnitude and albedo were determined by Mallama et al. (2017, Icarus 282, 19-33). That analysis depended largely on photometric data obtained when the ring system interfered with observations of the globe. In this study…

Earth and Planetary Astrophysics · Physics 2017-01-03 Anthony Mallama , Hristo Pavlov

The weather layers of the gas giant planets, Jupiter and Saturn, comprise the shallow atmospheric layers that are influenced energetically by a combination of incoming solar radiation and localised latent heating of condensates, as well as…

Earth and Planetary Astrophysics · Physics 2020-04-07 Peter L Read , Roland M B Young , Daniel Kennedy

Titan, with its thick, nitrogen-dominated atmosphere, has been seen from satellite and terrestrial observations to harbour methane clouds. To investigate whether atmospheric features such as clouds could also be visible from the surface of…

Earth and Planetary Astrophysics · Physics 2016-03-15 Christina L. Smith , Brittney A. Cooper , John E. Moores

Seasonal variation is significant in Titan's atmosphere due to the large change of solar insolation resulting from Titan's 26.7{\deg} axial tilt relative to the plane of Saturn's orbit. Here we present an investigation of hydrocarbon and…

Earth and Planetary Astrophysics · Physics 2022-04-18 Siteng Fan , Daniel Zhao , Cheng Li , Donald E. Shemansky , Mao-Chang Liang , Yuk L. Yung

We present a new, objectively defined catalog of candidate galaxy clusters based on the galaxy catalogs from the Digitized Second Palomar Observatory Sky Survey (DPOSS). This cluster catalog, derived from the best calibrated plates in the…

The Voyager 1 and 2 Ultraviolet Spectrometer (UVS) solar and stellar occultation dataset represents one of the primary, pre-Cassini sources of information that we have on the neutral upper atmosphere of Saturn. Despite its importance,…

Earth and Planetary Astrophysics · Physics 2015-07-15 Ronald J. Vervack , Julianne I. Moses

We use the clathrate hydrate trapping theory to calculate the enrichments in O, N, S, Xe, Ar and Kr compared to solar in Saturn's atmosphere. For this, we calibrate our calculations using two different carbon abundance determinations that…

Astrophysics · Physics 2009-11-11 Olivier Mousis , Yann Alibert , Willy Benz

We revisit the evidence for a "dust cloud" observed by the Cassini spacecraft at Saturn in 2006. The simultaneous data of 3 instruments are compared to interpret the signatures of a coherent swarm of dust that could have remained floating…

Earth and Planetary Astrophysics · Physics 2015-05-19 Emil Khalisi

The Saturn System has been studied in detail by the Cassini-Huygens Mission. A major thrust of those investigations has been to understand how Saturn formed and evolved and to place Saturn in the context of other gas giants and planetary…

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

Certain regions of Saturn's rings exhibit periodic opacity variations with characteristic radial wavelengths of up to a few hundred meters that have been attributed to viscous overstabilities. The Visual and Infrared Mapping Spectrometer…

Earth and Planetary Astrophysics · Physics 2015-06-19 M. M. Hedman , P. D. Nicholson , H. Salo

Aims: We study galaxy clustering and explore the dependence of galaxy properties on the the environment up to a redshift z~1, on the basis of a deep multi-band survey in the Chandra Deep Field South. Methods: We have developed a new method…

Astrophysics · Physics 2009-11-11 Dario Trevese , Marco Castellano , Adriano Fontana , Emanuele Giallongo

The Cassini mission unveiled the intense and diverse activity in Saturn's atmosphere: banded jets, waves, vortices, equatorial oscillations. To set the path towards a better understanding of those phenomena, we performed high-resolution…

We report Venus image observations around the two maximum elongations of the planet at June and October 2015. From these images we describe the global atmospheric dynamics and cloud morphology in the planet before the arrival of JAXA…

Saturn's northern summertime hemisphere was mapped by JWST/MIRI (4.9-27.9 $\mu$m) in November 2022, tracing the seasonal evolution of temperatures, aerosols, and chemical species in the five years since the end of the Cassini mission. The…