Composition and dynamics of plasma in Saturn's magnetosphere

D. T. Young; J. J. Berthelier; M. Blanc; J. L. Burch; S. Bolton; A. J. Coates; F. J. Crary; R. Goldstein; M. Grande; T. W. Hill; R. E. Johnson; R. A. Baragiola; V. Kelha; D. J. McComas; K. Mursula; E. C. Sittler; K. R. Svenes; K. Szegö; P. Tanskanen; M. F. Thomsen; S. Bakshi; B. L. Barraclough; Z. Bebesi; D. Delapp; M. W. Dunlop; J. T. Gosling; J. D. Furman; L. K. Gilbert; D. Glenn; C. Holmlund; J. M. Illiano; G. R. Lewis; D. R. Linder; S. Maurice; H. J. McAndrews; B. T. Narheim; E. Pallier; D. Reisenfeld; A. M. Rymer; H. T. Smith; R. L. Tokar; J. Vilppola; C. Zinsmeyer

doi:10.1126/science.1106151

Composition and dynamics of plasma in Saturn's magnetosphere

D. T. Young^*, J. J. Berthelier, M. Blanc, J. L. Burch, S. Bolton, A. J. Coates, F. J. Crary, R. Goldstein, M. Grande, T. W. Hill, R. E. Johnson, R. A. Baragiola, V. Kelha, D. J. McComas, K. Mursula, E. C. Sittler, K. R. Svenes, K. Szegö, P. Tanskanen, M. F. ThomsenS. Bakshi, B. L. Barraclough, Z. Bebesi, D. Delapp, M. W. Dunlop, J. T. Gosling, J. D. Furman, L. K. Gilbert, D. Glenn, C. Holmlund, J. M. Illiano, G. R. Lewis, D. R. Linder, S. Maurice, H. J. McAndrews, B. T. Narheim, E. Pallier, D. Reisenfeld, A. M. Rymer, H. T. Smith, R. L. Tokar, J. Vilppola, C. Zinsmeyer

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During Cassini's initial orbit, we observed a dynamic magnetosphere composed primarily of a complex mixture of water-derived atomic and molecular ions. We have identified four distinct regions characterized by differences in both bulk plasma properties and ion composition. Protons are the dominant species outside about 9 RS (where RS is the radial distance from the center of Saturn), whereas inside, the plasma consists primarily of a corotating comet-like mix of water-derived ions with approximately 3% N+. Over the A and B rings, we found an ionosphere in which O2+ and O+ are dominant, which suggests the possible existence of a layer of O2 gas similar to the atmospheres of Europa and Ganymede.

Iaith wreiddiol	Saesneg
Tudalennau (o-i)	1262-1266
Nifer y tudalennau	5
Cyfnodolyn	Science
Cyfrol	307
Rhif cyhoeddi	5713
Dynodwyr Gwrthrych Digidol (DOIs)	https://doi.org/10.1126/science.1106151
Statws	Cyhoeddwyd - 25 Chwef 2005

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10.1126/science.1106151

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Young, D. T., Berthelier, J. J., Blanc, M., Burch, J. L., Bolton, S., Coates, A. J., Crary, F. J., Goldstein, R., Grande, M., Hill, T. W., Johnson, R. E., Baragiola, R. A., Kelha, V., McComas, D. J., Mursula, K., Sittler, E. C., Svenes, K. R., Szegö, K., Tanskanen, P., ... Zinsmeyer, C. (2005). Composition and dynamics of plasma in Saturn's magnetosphere. Science, 307(5713), 1262-1266. https://doi.org/10.1126/science.1106151

@article{747175968abe4c4aab0216455f73835f,

title = "Composition and dynamics of plasma in Saturn's magnetosphere",

abstract = "During Cassini's initial orbit, we observed a dynamic magnetosphere composed primarily of a complex mixture of water-derived atomic and molecular ions. We have identified four distinct regions characterized by differences in both bulk plasma properties and ion composition. Protons are the dominant species outside about 9 RS (where RS is the radial distance from the center of Saturn), whereas inside, the plasma consists primarily of a corotating comet-like mix of water-derived ions with approximately 3\% N+. Over the A and B rings, we found an ionosphere in which O2+ and O+ are dominant, which suggests the possible existence of a layer of O2 gas similar to the atmospheres of Europa and Ganymede.",

keywords = "Atmosphere, Extraterrestrial Environment, Hydrogen, Ice, Ions, Magnetics, Oxygen, Protons, Saturn, Spacecraft, Spectrum Analysis",

author = "Young, \{D. T.\} and Berthelier, \{J. J.\} and M. Blanc and Burch, \{J. L.\} and S. Bolton and Coates, \{A. J.\} and Crary, \{F. J.\} and R. Goldstein and M. Grande and Hill, \{T. W.\} and Johnson, \{R. E.\} and Baragiola, \{R. A.\} and V. Kelha and McComas, \{D. J.\} and K. Mursula and Sittler, \{E. C.\} and Svenes, \{K. R.\} and K. Szeg{\"o} and P. Tanskanen and Thomsen, \{M. F.\} and S. Bakshi and Barraclough, \{B. L.\} and Z. Bebesi and D. Delapp and Dunlop, \{M. W.\} and Gosling, \{J. T.\} and Furman, \{J. D.\} and Gilbert, \{L. K.\} and D. Glenn and C. Holmlund and Illiano, \{J. M.\} and Lewis, \{G. R.\} and Linder, \{D. R.\} and S. Maurice and McAndrews, \{H. J.\} and Narheim, \{B. T.\} and E. Pallier and D. Reisenfeld and Rymer, \{A. M.\} and Smith, \{H. T.\} and Tokar, \{R. L.\} and J. Vilppola and C. Zinsmeyer",

year = "2005",

month = feb,

day = "25",

doi = "10.1126/science.1106151",

language = "English",

volume = "307",

pages = "1262--1266",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "5713",

}

Young, DT, Berthelier, JJ, Blanc, M, Burch, JL, Bolton, S, Coates, AJ, Crary, FJ, Goldstein, R, Grande, M, Hill, TW, Johnson, RE, Baragiola, RA, Kelha, V, McComas, DJ, Mursula, K, Sittler, EC, Svenes, KR, Szegö, K, Tanskanen, P, Thomsen, MF, Bakshi, S, Barraclough, BL, Bebesi, Z, Delapp, D, Dunlop, MW, Gosling, JT, Furman, JD, Gilbert, LK, Glenn, D, Holmlund, C, Illiano, JM, Lewis, GR, Linder, DR, Maurice, S, McAndrews, HJ, Narheim, BT, Pallier, E, Reisenfeld, D, Rymer, AM, Smith, HT, Tokar, RL, Vilppola, J & Zinsmeyer, C 2005, 'Composition and dynamics of plasma in Saturn's magnetosphere', Science, cyfrol. 307, rhif 5713, tt. 1262-1266. https://doi.org/10.1126/science.1106151

TY - JOUR

T1 - Composition and dynamics of plasma in Saturn's magnetosphere

AU - Young, D. T.

AU - Berthelier, J. J.

AU - Blanc, M.

AU - Burch, J. L.

AU - Bolton, S.

AU - Coates, A. J.

AU - Crary, F. J.

AU - Goldstein, R.

AU - Grande, M.

AU - Hill, T. W.

AU - Johnson, R. E.

AU - Baragiola, R. A.

AU - Kelha, V.

AU - McComas, D. J.

AU - Mursula, K.

AU - Sittler, E. C.

AU - Svenes, K. R.

AU - Szegö, K.

AU - Tanskanen, P.

AU - Thomsen, M. F.

AU - Bakshi, S.

AU - Barraclough, B. L.

AU - Bebesi, Z.

AU - Delapp, D.

AU - Dunlop, M. W.

AU - Gosling, J. T.

AU - Furman, J. D.

AU - Gilbert, L. K.

AU - Glenn, D.

AU - Holmlund, C.

AU - Illiano, J. M.

AU - Lewis, G. R.

AU - Linder, D. R.

AU - Maurice, S.

AU - McAndrews, H. J.

AU - Narheim, B. T.

AU - Pallier, E.

AU - Reisenfeld, D.

AU - Rymer, A. M.

AU - Smith, H. T.

AU - Tokar, R. L.

AU - Vilppola, J.

AU - Zinsmeyer, C.

PY - 2005/2/25

Y1 - 2005/2/25

N2 - During Cassini's initial orbit, we observed a dynamic magnetosphere composed primarily of a complex mixture of water-derived atomic and molecular ions. We have identified four distinct regions characterized by differences in both bulk plasma properties and ion composition. Protons are the dominant species outside about 9 RS (where RS is the radial distance from the center of Saturn), whereas inside, the plasma consists primarily of a corotating comet-like mix of water-derived ions with approximately 3% N+. Over the A and B rings, we found an ionosphere in which O2+ and O+ are dominant, which suggests the possible existence of a layer of O2 gas similar to the atmospheres of Europa and Ganymede.

AB - During Cassini's initial orbit, we observed a dynamic magnetosphere composed primarily of a complex mixture of water-derived atomic and molecular ions. We have identified four distinct regions characterized by differences in both bulk plasma properties and ion composition. Protons are the dominant species outside about 9 RS (where RS is the radial distance from the center of Saturn), whereas inside, the plasma consists primarily of a corotating comet-like mix of water-derived ions with approximately 3% N+. Over the A and B rings, we found an ionosphere in which O2+ and O+ are dominant, which suggests the possible existence of a layer of O2 gas similar to the atmospheres of Europa and Ganymede.

KW - Atmosphere

KW - Extraterrestrial Environment

KW - Hydrogen

KW - Ice

KW - Ions

KW - Magnetics

KW - Oxygen

KW - Protons

KW - Saturn

KW - Spacecraft

KW - Spectrum Analysis

UR - http://www.scopus.com/inward/record.url?scp=20044376077&partnerID=8YFLogxK

U2 - 10.1126/science.1106151

DO - 10.1126/science.1106151

M3 - Article

C2 - 15731443

AN - SCOPUS:20044376077

SN - 0036-8075

VL - 307

SP - 1262

EP - 1266

JO - Science

JF - Science

IS - 5713

ER -

Composition and dynamics of plasma in Saturn's magnetosphere

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