Journal ArticleDOI
Negative ions in the Enceladus plume
Andrew J. Coates,Andrew J. Coates,Geraint H. Jones,Geraint H. Jones,Gethyn R. Lewis,Gethyn R. Lewis,Anne Wellbrock,Anne Wellbrock,D. T. Young,F. J. Crary,Robert E. Johnson,T. A. Cassidy,T. W. Hill +12 more
TLDR
In this article, negative ions were detected in the plumes of Enceladus during its encounter with NASA's Cassini spacecraft and mass identifications were made using a mass analysis.About:
This article is published in Icarus.The article was published on 2010-04-01. It has received 52 citations till now. The article focuses on the topics: Enceladus & Saturn.read more
Citations
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Journal ArticleDOI
Cassini finds an oxygen-carbon dioxide atmosphere at Saturn's icy moon Rhea
B. D. Teolis,Geraint H. Jones,P. F. Miles,R. L. Tokar,Brian Magee,J. H. Waite,Elias Roussos,D. T. Young,F. J. Crary,Andrew J. Coates,Robert E. Johnson,Wei-Ling Tseng,Raúl A. Baragiola +12 more
TL;DR: The flyby measurements of the Cassini spacecraft at Saturn’s moon Rhea reveal a tenuous oxygen (O2)–carbon dioxide (CO2) atmosphere that appears to be sustained by chemical decomposition of the surface water ice under irradiation from Saturn's magnetospheric plasma.
Book ChapterDOI
Fundamental Plasma Processes in Saturn's Magnetosphere
Barry Mauk,D. C. Hamilton,T. W. Hill,George Hospodarsky,Robert E. Johnson,Chris Paranicas,Elias Roussos,Christopher T. Russell,D. E. Shemansky,E. C. Sittler,Richard M. Thorne +10 more
TL;DR: A review of the fundamental plasma processes that control the extensive space environment of the magnetosphere of Saturn can be found in this article, where the authors take stock of where we are in our understanding of Saturn's magnetosphere following the successful return and analysis of extensive sets of Cassini data.
Journal ArticleDOI
Charged nanograins in the Enceladus plume
T. W. Hill,Michelle F. Thomsen,R. L. Tokar,Andrew J. Coates,Gethyn R. Lewis,D. T. Young,F. J. Crary,Raúl A. Baragiola,Robert E. Johnson,Yaxue Dong,R. J. Wilson,Geraint H. Jones,Jan-Erik Wahlund,Donald G. Mitchell,Mihaly Horanyi +14 more
TL;DR: In the case of Enceladus, the mass-to-charge (m/q) ratio of heavy charged particles has been shown to be at least in the m/q range accessible to the spacecraft ram direction as discussed by the authors.
Journal ArticleDOI
Cassini CAPS-ELS observations of negative ions in Titan's ionosphere: Trends of density with altitude
TL;DR: In this article, the authors used data from 34 Titan encounters to determine peak densities and associated altitudes at which negative ions are observed and the highest altitudes in which individual mass groups are found.
Charged nanograins in the Enceladus plume
TL;DR: In the case of Enceladus, the mass-to-charge (m/q) ratio of heavy charged particles has been measured by the Cassini Plasma Spectrometer (CAPS) in the spacecraft ram direction as mentioned in this paper.
References
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Journal ArticleDOI
The process of tholin formation in Titan's upper atmosphere.
J. H. Waite,D. T. Young,Thomas E. Cravens,Andrew J. Coates,F. J. Crary,Brian Magee,Joseph Westlake +6 more
TL;DR: Evidence is obtained for tholin formation at high altitudes (∼1000 kilometers) in Titan's atmosphere using measurements from a combination of mass/charge and energy/charge spectrometers on the Cassini spacecraft.
Journal ArticleDOI
Cassini ion and neutral mass spectrometer: Enceladus plume composition and structure.
J. Hunter Waite,Michael R. Combi,Wing-Huen Ip,Thomas E. Cravens,Ralph L. McNutt,Wayne Kasprzak,Roger V. Yelle,Janet G. Luhmann,Hasso B. Niemann,David A. Gell,Brian Magee,Greg Fletcher,Jonathan I. Lunine,Wei-Ling Tseng +13 more
TL;DR: INMS data indicate that the atmospheric plume and coma are dominated by water, with significant amounts of carbon dioxide, an unidentified species with a mass-to-charge ratio of 28 daltons (either carbon monoxide or molecular nitrogen), and methane.
Journal ArticleDOI
Solar photo rates for planetary atmospheres and atmospheric pollutants
TL;DR: In this article, the rate coefficients and excess energies for dissociation, ionization, and dissociative ionization are presented for atomic and molecular species that have been identified or are suspected to exist in the atmospheres of planets, satellites (moons), comets, or as pollutants in the Earth atmosphere.
Journal ArticleDOI
Enceladus' Water Vapor Plume
Candice Hansen,Larry W. Esposito,A. I. F. Stewart,Joshua Colwell,Amanda R. Hendrix,Wayne Pryor,Donald E. Shemansky,Robert A. West +7 more
TL;DR: The Cassini spacecraft flew close to Saturn's small moon Enceladus three times in 2005 and observed stellar occultations on two flybys and confirmed the existence, composition, and regionally confined nature of a water vapor plume in the south polar region of Ence Gladus.
Journal ArticleDOI
Liquid water on Enceladus from observations of ammonia and 40Ar in the plume
J. H. Waite,W. S. Lewis,Brian Magee,Jonathan I. Lunine,William B. McKinnon,Christopher R. Glein,Olivier Mousis,Olivier Mousis,D. T. Young,Tim Brockwell,Joseph Westlake,M. J. Nguyen,B. D. Teolis,Hasso B. Niemann,Ralph L. McNutt,Mark E. Perry,Wing-Huen Ip +16 more
TL;DR: McKinnon et al. as mentioned in this paper reported that ammonia is present in the plume, along with various organic compounds, deuterium and, very probably, Ar-40, which provides strong evidence for the existence of at least some liquid water, given that temperatures in excess of 180 K have been measured near the fractures from which the jets emanate.
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