Close Cassini flybys of Saturn’s ring moons Pan, Daphnis, Atlas, Pandora, and Epimetheus | Zendy

B. J. Buratti | Zendy; P. C. Thomas | Zendy; E. Roussos | Zendy; C. J. A. Howett | Zendy; M. Seiß | Zendy; Amanda Hendrix | Zendy; P. Helfenstein | Zendy; R. H. Brown | Zendy; R. N. Clark | Zendy; T. Denk | Zendy; G. Filacchione | Zendy; H. Hoffmann | Zendy; G. H. Jones | Zendy; Nozair Khawaja | Zendy; P. Kollmann | Zendy; N. Krupp | Zendy; J. I. Lunine | Zendy; T. Momary | Zendy; C. Paranicas | Zendy; Frank Postberg | Zendy; M. Sachse | Zendy; F. Spahn | Zendy; J. R. Spencer | Zendy; R. Srama | Zendy; Thomas Albin | Zendy; K. H. Baines | Zendy; M. Ciarniello | Zendy; T. Economou | Zendy; HsiangWen Hsu | Zendy; S. Kempf | Zendy; S. M. Krimigis | Zendy; D. G. Mitchell | Zendy; G. MoragasKlostermeyer | Zendy; P. D. Nicholson | Zendy; C. C. Porco | Zendy; H. Rosenberg | Zendy; Jonas Simolka | Zendy; L. A. Soderblom | Zendy

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Close Cassini flybys of Saturn’s ring moons Pan, Daphnis, Atlas, Pandora, and Epimetheus

Author(s) -

B. J. Buratti,

P. C. Thomas,

E. Roussos,

C. J. A. Howett,

M. Seiß,

Amanda Hendrix,

P. Helfenstein,

R. H. Brown,

R. N. Clark,

T. Denk,

G. Filacchione,

H. Hoffmann,

G. H. Jones,

Nozair Khawaja,

P. Kollmann,

N. Krupp,

J. I. Lunine,

T. Momary,

C. Paranicas,

Frank Postberg,

M. Sachse,

F. Spahn,

J. R. Spencer,

R. Srama,

Thomas Albin,

K. H. Baines,

M. Ciarniello,

T. Economou,

HsiangWen Hsu,

S. Kempf,

S. M. Krimigis,

D. G. Mitchell,

G. MoragasKlostermeyer,

P. D. Nicholson,

C. C. Porco,

H. Rosenberg,

Jonas Simolka,

L. A. Soderblom

Publication year - 2019

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.aat2349

Subject(s) - saturn , astrobiology , atlas (anatomy) , astronomy , physics , geology , paleontology , planet

Saturn's main ring system is associated with a set of small moons that either are embedded within it or interact with the rings to alter their shape and composition. Five close flybys of the moons Pan, Daphnis, Atlas, Pandora, and Epimetheus were performed between December 2016 and April 2017 during the ring-grazing orbits of the Cassini mission. Data on the moons' morphology, structure, particle environment, and composition were returned, along with images in the ultraviolet and thermal infrared. We find that the optical properties of the moons' surfaces are determined by two competing processes: contamination by a red material formed in Saturn's main ring system and accretion of bright icy particles or water vapor from volcanic plumes originating on the moon Enceladus.

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