Professor Southwood

Yates JN, Southwood DJ, Dougherty MK, 2015, Magnetic phase structure of Saturn's 10.7h oscillations, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 120, Pages: 2631-2648, ISSN: 2169-9380

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• Citations: 6

Southwood DJ, 2015, Formation of Magnetotails: Fast and Slow Rotators Compared, Magnetotails in the Solar System, Editors: Keiling, Jackman, Publisher: John Wiley & Sons, Pages: 199-215, ISBN: 9781118842348

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Southwood D, 2014, Space science and policy, ASTRONOMY & GEOPHYSICS, Vol: 55, Pages: 26-32, ISSN: 1366-8781

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Jackman CM, Slavin JA, Kivelson MG, Southwood DJ, Achilleos N, Thomsen MF, DiBraccio GA, Eastwood JP, Freeman MP, Dougherty MK, Vogt MFet al., 2014, Saturn's dynamic magnetotail: A comprehensive magnetic field and plasma survey of plasmoids and traveling compression regions and their role in global magnetospheric dynamics, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 119, Pages: 5465-5494, ISSN: 2169-9380

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• Citations: 63

Southwood D, 2014, Crowded Orbits: Conflict and Cooperation in Space, NATURE, Vol: 509, Pages: 32-32, ISSN: 0028-0836

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Southwood DJ, Cowley SWH, 2014, The origin of Saturn's magnetic periodicities: Northern and southern current systems, Journal of Geophysical Research: Space Physics, Vol: 119, Pages: 1563-1571, ISSN: 2169-9380

The recent survey by Andrews et al. (2012) of the separate northern and southern ~10.7 h periodic magnetic signals in Saturn's magnetosphere limits very much their governing current systems. The existence of signals with pure or close to pure northern or southern periods in respective polar caps taken with the relatively narrow bandwidth of the signals indicates that the actual periodicities are imposed independently from northern and southern polar regions, i.e., the open field line regions. Field‐aligned currents must flow on the boundaries of these regions to exclude signals from the other hemisphere. Equatorward of the polar cap, on closed magnetic shells, there are distinct north and south “cam” source currents, the distinction being made clear by a difference in polarization. We outline the consequences for the governing current systems and the implications for sustaining the energy and power dissipation in the system.

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Southwood D, 2014, Saturn's mysterious magnetism, ASTRONOMY & GEOPHYSICS, Vol: 55, Pages: 13-18, ISSN: 1366-8781

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Southwood D, 2012, When international partnerships go wrong, NATURE, Vol: 488, Pages: 451-453, ISSN: 0028-0836

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• Citations: 2

Andrews DJ, Cowley SWH, Dougherty MK, Lamy L, Provan G, Southwood DJet al., 2012, Planetary period oscillations in Saturn’s magnetosphere: Evolution of magnetic oscillation properties from southern summer to post-equinox, J. Geophys. Res., Vol: 117

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Farrugia CJ, Chen L-J, Torbert RB, Southwood DJ, Cowley SWH, Vrublevskis A, Mouikis C, Vaivads A, Andre M, Decreau P, Vaith H, Owen CJ, Sibeck DJ, Lucek E, Smith CWet al., 2011, "Crater" flux transfer events: Highroad to the X line?, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 116, ISSN: 2169-9380

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• Citations: 15

Southwood DJ, 2011, Direct evidence of differences in magnetic rotation rate between Saturn’s northern andsouthern polar regions, J. Geophys. Res., Vol: 116

The discovery of a difference in apparent rotation rate between Saturn kilometricradio emission from northern and southern hemispheres leads immediately to thequestion of whether there is a counterpart detectable in the Saturnian magnetic field. Wereport direct detection of a difference in the rotating magnetic signal measured by theCassini spacecraft magnetometer consistent with that seen in the radio signals.Theoretical consequences of the direct detection are discussed.

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Southwood DJ, Kivelson MG, 2009, The source of Saturn's periodic radio emission, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 114, ISSN: 2169-9380

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• Citations: 43

Bunce EJ, Arridge CS, Clarke JT, Coates AJ, Cowley SWH, Dougherty MK, Gerard J-C, Grodent D, Hansen KC, Nichols JD, Southwood DJ, Talboys DLet al., 2008, Origin of Saturn's aurora:: Simultaneous observations by Cassini and the Hubble Space Telescope, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 113, ISSN: 2169-9380

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• Citations: 126

Andrews DJ, Bunce EJ, Cowley SWH, Dougherty MK, Provan G, Southwood DJet al., 2008, Planetary period oscillations in Saturn's magnetosphere: Phase relation of equatorial magnetic field oscillations and Saturn kilometric radiation modulation, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 113, ISSN: 2169-9380

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• Citations: 103

Arridge CS, Khurana KK, Russell CT, Southwood DJ, Achilleos N, Dougherty MK, Coates AJ, Leinweber HKet al., 2008, Warping of Saturn's magnetospheric and magnetotail current sheets, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 113, ISSN: 2169-9380

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• Citations: 149

Arridge CS, Russell CT, Khurana KK, Achilleos N, Cowley SWH, Dougherty MK, Southwood DJ, Bunce EJet al., 2008, Saturn's magnetodisc current sheet, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 113, ISSN: 2169-9380

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• Citations: 97

Southwood DJ, Kivelson MG, 2007, Saturnian magnetospheric dynamics: Elucidation of a camshaft model, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 112, ISSN: 2169-9380

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• Citations: 123

Jackman CM, Russell CT, Southwood DJ, Arridge CS, Achilleos N, Dougherty MKet al., 2007, Strong rapid dipolarizations in Saturn's magnetotail: In situ evidence of reconnection, GEOPHYSICAL RESEARCH LETTERS, Vol: 34, ISSN: 0094-8276

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• Citations: 90

Gurnett DA, Persoon AM, Kurth WS, Groene JB, Averkamp TF, Dougherty MK, Southwood DJet al., 2007, The variable rotation period of the inner region of Saturn's plasma disk, SCIENCE, Vol: 316, Pages: 442-445, ISSN: 0036-8075

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• Citations: 211

Dougherty MK, Achilleos N, Andre N, Arridge CS, Balogh A, Bertucci C, Burton ME, Cowley SWH, Erdos G, Giampieri G, Glassmeier KH, Khurana KK, Leisner J, Neubauer FM, Russell CT, Smith EJ, Southwood DJ, Tsurutani BTet al., 2005, Cassini magnetometer observations during Saturn orbit insertion, SCIENCE, Vol: 307, Pages: 1266-1270, ISSN: 0036-8075

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• Citations: 195

Dougherty MK, Kellock S, Southwood DJ, Balogh A, Smith EJ, Tsurutani BT, Gerlach B, Glassmeier KH, Gleim F, Russell CT, Erdos G, Neubauer EM, Cowley SWHet al., 2004, The Cassini magnetic field investigation, SPACE SCIENCE REVIEWS, Vol: 114, Pages: 331-383, ISSN: 0038-6308

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• Citations: 441

Kivelson MG, Southwood DJ, 2003, First evidence of IMF control of Jovian magnetospheric boundary locations: Cassini and Galileo magnetic field measurements compared, PLANETARY AND SPACE SCIENCE, Vol: 51, Pages: 891-898, ISSN: 0032-0633

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• Citations: 15

Espinosa SA, Southwood DJ, Dougherty MK, 2003, How can Saturn impose its rotation period in a noncorotating magnetosphere?, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 108, ISSN: 2169-9380

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• Citations: 74

Espinosa SA, Southwood DJ, Dougherty MK, 2003, Reanalysis of Saturn's magnetospheric field data view of spin-periodic perturbations, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 108, ISSN: 2169-9380

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• Citations: 55

Matsuoka A, Southwood DJ, Mukai T, Kokubun S, Matsumoto Het al., 2002, A Walen test of low-frequency MHD waves in the magnetosheath observed by Geotail, Symposium on Intercomparative Magnetosheath Studies, Publisher: PERGAMON-ELSEVIER SCIENCE LTD, Pages: 613-618, ISSN: 0032-0633

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• Citations: 2

Blanc M, Bolton S, Bradley J, Burton M, Cravens TE, Dandouras I, Dougherty MK, Festou MC, Feynman J, Johnson RE, Gombosi TG, Kurth WS, Liewer PC, Mauk BH, Maurice S, Mitchell D, Neubauer FM, Richardson JD, Shemansky DE, Sittler EC, Tsurutani BT, Zarka P, Esposito LW, Grün E, Gurnett DA, Kliore AJ, Krimigis SM, Southwood D, Waite JH, Young DTet al., 2002, Magnetospheric and plasma science with Cassini-Huygens, SPACE SCIENCE REVIEWS, Vol: 104, Pages: 253-346, ISSN: 0038-6308

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• Citations: 43

Tsurutani BT, Smith EJ, Burton ME, Arballo JK, Galvan C, Zhou XY, Southwood DJ, Dougherty MK, Glassmeier KH, Neubauer FM, Chao JKet al., 2001, Oblique "1-Hz" whistler mode waves in an electron foreshock: The Cassini near-Earth encounter, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 106, Pages: 30223-30238, ISSN: 2169-9380

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• Citations: 12

Southwood DJ, Dougherty MK, Balogh A, Cowley SWH, Smith EJ, Tsurutani BT, Russell CT, Siscoe GL, Erdos G, Glassmeier KH, Gleim F, Neubauer FMet al., 2001, Magnetometer measurements from the Cassini Earth swing-by, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 106, Pages: 30109-30128, ISSN: 2169-9380

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• Citations: 17

Khan H, Cowley SWH, Kolesnikova E, Lester M, Brittnacher MJ, Hughes TJ, Hughes WJ, Kurth WS, McComas DJ, Newitt L, Owen CJ, Reeves GD, Singer HJ, Smith CW, Southwood DJ, Watermann JFet al., 2001, Observations of two complete substorm cycles during the Cassini Earth swing-by: Cassini magnetometer data in a global context, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 106, Pages: 30141-30175, ISSN: 2169-9380

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• Citations: 15

Smith EJ, Dougherty MK, Russell CT, Southwood DJet al., 2001, Scalar helium magnetometer observations at Cassini Earth swing-by, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 106, Pages: 30129-30139, ISSN: 2169-9380

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• Citations: 18