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Related papers: Nanograin densities outside Saturn's A-ring

200 papers

In this chapter we describe the remote sensing measurement of nitrogen-bearing species in Titan's atmosphere by the Composite Infrared Spectrometer (CIRS) on the Cassini spacecraft. This instrument, which detects the thermal infrared…

Earth and Planetary Astrophysics · Physics 2013-03-14 Conor A. Nixon , Nicholas A. Teanby , Carrie M. Anderson , Sandrine Vinatier

At the end of the Cassini mission, Saturn's rings have been claimed to be spectacularly young compared to the age of the Solar System: their unusual ice-rich composition corresponds to initially pure ice rings polluted by interplanetary…

Earth and Planetary Astrophysics · Physics 2026-03-05 Gregorio Ricerchi , Aurélien Crida

The alignment of Saturn's magnetic pole with its rotation axis precludes the use of magnetic field measurements to determine its rotation period. The period was previously determined from radio measurements by the Voyager spacecraft to be…

Earth and Planetary Astrophysics · Physics 2015-06-24 Ravit Helled , Eli Galanti , Yohai Kaspi

The spatial distribution and polarization of Saturn narrowband (NB) emissions have been studied by using Cassini Radio and Plasma Wave Sciences data and goniopolarimetric data obtained through an inversion algorithm with a preset source…

We examined the grain size in the dust ring encircling the 0.19~$M_\sun$ T Tauri star CIDA 1 using the Karl G. Jansky Very Large Array (JVLA) at multiple centimeter wavelengths, with a spatial resolution of 0$\farcs$2--0$\farcs$9. We…

Earth and Planetary Astrophysics · Physics 2023-08-24 Jun Hashimoto , Hauyu Baobab Liu , Ruobing Dong , Beibei Liu , Takayuki Muto , Yuka Terada

We report the discovery of a low-surface-brightness (27.42 mag arcsec^(-2) in g band) nebula, which has a ring-like shape in the Beijing-Arizona Sky Survey (BASS). Positive detections have been found in multiband data from far ultraviolet…

Astrophysics of Galaxies · Physics 2020-08-11 Wei Zhang , Fan Yang , Hong Wu , Chaojian Wu , Hu Zou , Tianmeng Zhang , Xu Zhou , Fengjie Lei , Junjie Jin , Zhimin Zhou , Jundan Nie , Jun Ma , Jiali Wang

The Phoebe ring, Saturn's largest and faintest ring, lies far beyond the planet's well-known main rings. It is primarily sourced by collisions with Saturn's largest irregular satellite Phoebe, perhaps through stochastic macroscopic…

Earth and Planetary Astrophysics · Physics 2015-06-18 Daniel Tamayo , Matthew M. Hedman , Joseph A. Burns

Remote sensing observations meet some limitations when used to study the bulk atmospheric composition of the giant planets of our solar system. A remarkable example of the superiority of in situ probe measurements is illustrated by the…

Our analysis of Cassini/VIMS near-infrared spectra of Saturn's Great Storm of 2010-2011 reveals a multi-component aerosol composition comprised primarily of ammonia ice, with a significant component of water ice. The most likely third…

Earth and Planetary Astrophysics · Physics 2015-02-23 Lawrence Sromovsky , Kevin Baines , Patrick Fry

We suggest that the irregular structure in Saturn's B ring arises from the formation of shear-free ring-particle assemblies of up to ~100 km in radial extent. The characteristic scale of the irregular structure is set by the competition…

Astrophysics · Physics 2009-11-07 Scott Tremaine

We report observations of stripe-like features in Enceladus' plumes captured simultaneously by Cassini's VIMS-IR and ISS NAC instruments during flyby E17, with similar patterns seen in VIMS-IR data from flyby E13 and E19. These parallel…

Since 2013, dense and narrow rings are known around the small Centaur object Chariklo and the dwarf planet Haumea. Dense material has also been detected around the Centaur Chiron, although its nature is debated. This is the first time ever…

Earth and Planetary Astrophysics · Physics 2020-01-22 Bruno Sicardy , Stefan Renner , Rodrigo Leiva , Françoise Roques , Maryame El Moutamid , Pablo Santos-Sanz , Josselin Desmars

The magnetospheres of the outer planets exhibit turbulent phenomena in an environment which is qualitatively different compared to the solar wind or the interstellar medium. The key differences are the finite sizes of the magnetospheres…

Earth and Planetary Astrophysics · Physics 2021-04-27 Joachim Saur

We review our current understanding of the interior structure and thermal evolution of Saturn, with a focus on recent results in the Cassini era. There has been important progress in understanding physical inputs, including equations of…

Earth and Planetary Astrophysics · Physics 2016-09-22 Jonathan J. Fortney , Ravit Helled , Nadine Nettelmann , David J. Stevenson , Mark S. Marley , William B. Hubbard , Luciano Iess

The innovative Saturn Ring Skimmer mission concept enables a wide range of investigations that address fundamental questions about Saturn and its rings, as well as giant planets and astrophysical disk systems in general. This mission would…

The phenomenology of the emission of pulsars and magnetars depends dramatically on the structure and properties of their magnetic field. In particular it is believed that the outbursting and flaring activity observed in AXPs and SRGs is…

High Energy Astrophysical Phenomena · Physics 2016-06-22 N. Bucciantini , A. G. Pili , L. Del Zanna

The G-ring arc of Saturn, confined by the 7:6 corotation eccentric resonance with Mimas, is primarily composed of micrometric particles. These particles, significantly influenced by the solar radiation pressure, are subject to rapid…

Earth and Planetary Astrophysics · Physics 2025-01-23 V. Lattari , R. Sfair , P. B. Siqueira , C. M. Schäfer

The narrow main rings of Uranus are composed of almost exclusively centimeter- to meter-sized particles, with a very small or nonexistent dust component; however, the filling factor, composition, thickness, mass, and detailed particle size…

Earth and Planetary Astrophysics · Physics 2019-07-17 Edward M. Molter , Imke de Pater , Michael T. Roman , Leigh N. Fletcher

Cassini discovered a plethora of neutral and ionised molecules in Titan's ionosphere including, surprisingly, anions and negatively charged molecules extending up to 13,800 u/q. In this letter we forward model the Cassini electron…

Close-in gas giants are expected to have a strong magnetic field of $\sim 10-100$G. Magnetic fields in extrasolar giant planets are detectable by future radio observations in $\gtrsim 10$MHz and the spectropolarimetry of atomic lines. In…

Earth and Planetary Astrophysics · Physics 2021-02-24 Yasunori Hori