The auroral footprint of Enceladus on Saturn

Wayne R. Pryor, Abigail M. Rymer (), Donald G. Mitchell, Thomas W. Hill, David T. Young, Joachim Saur, Geraint H. Jones, Sven Jacobsen, Stan W. H. Cowley, Barry H. Mauk, Andrew J. Coates, Jacques Gustin, Denis Grodent, Jean-Claude Gérard, Laurent Lamy, Jonathan D. Nichols, Stamatios M. Krimigis, Larry W. Esposito, Michele K. Dougherty, Alain J. Jouchoux, A. Ian F. Stewart, William E. McClintock, Gregory M. Holsclaw, Joseph M. Ajello, Joshua E. Colwell, Amanda R. Hendrix, Frank J. Crary, John T. Clarke and Xiaoyan Zhou
Additional contact information
Wayne R. Pryor: Central Arizona College
Abigail M. Rymer: Applied Physics Laboratory, Johns Hopkins University
Donald G. Mitchell: Applied Physics Laboratory, Johns Hopkins University
Thomas W. Hill: Rice University
David T. Young: Southwest Research Institute
Joachim Saur: Institut für Geophysik und Meteorologie, Universität zu Köln
Geraint H. Jones: Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking
Sven Jacobsen: Institut für Geophysik und Meteorologie, Universität zu Köln
Stan W. H. Cowley: University of Leicester
Barry H. Mauk: Applied Physics Laboratory, Johns Hopkins University
Andrew J. Coates: Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking
Jacques Gustin: Laboratoire de Physique Atmosphérique et Planétaire, Géophysique et Océanographie, Université de Liège
Denis Grodent: Laboratoire de Physique Atmosphérique et Planétaire, Géophysique et Océanographie, Université de Liège
Jean-Claude Gérard: Laboratoire de Physique Atmosphérique et Planétaire, Géophysique et Océanographie, Université de Liège
Jonathan D. Nichols: University of Leicester
Stamatios M. Krimigis: Applied Physics Laboratory, Johns Hopkins University
Larry W. Esposito: Laboratory for Atmospheric and Space Physics, University of Colorado
Michele K. Dougherty: Space and Atmospheric Physics, The Blackett Laboratory, Imperial College
Alain J. Jouchoux: Laboratory for Atmospheric and Space Physics, University of Colorado
A. Ian F. Stewart: Laboratory for Atmospheric and Space Physics, University of Colorado
William E. McClintock: Laboratory for Atmospheric and Space Physics, University of Colorado
Gregory M. Holsclaw: Laboratory for Atmospheric and Space Physics, University of Colorado
Joseph M. Ajello: Jet Propulsion Laboratory
Joshua E. Colwell: University of Central Florida
Amanda R. Hendrix: Jet Propulsion Laboratory
Frank J. Crary: Southwest Research Institute
John T. Clarke: Boston University
Xiaoyan Zhou: Jet Propulsion Laboratory

Nature, 2011, vol. 472, issue 7343, 331-333

Abstract: Enceladus makes its mark on Saturn Despite considerable differences between the magnetospheres of Saturn and Jupiter, cryovolcanic activity on Saturn's icy moon Enceladus was suspected to connect the moon to Saturn in a similar way to the electrodynamic coupling seen between Jupiter and its Galilean moons. This suspicion has been confirmed. Analysis of data collected during a Cassini fly-by within 55 kilometres of Enceladus in August 2008 reveals magnetic field-aligned ion and electron beam emissions from Enceladus with sufficient power to stimulate detectable aurora. Subsequent observations with the Cassini ultraviolet imaging spectrometer system detected the expected Enceladus auroral footprint in Saturn's atmosphere.

Date: 2011
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DOI: 10.1038/nature09928

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