Articles | Volume 35, issue 3
https://doi.org/10.5194/angeo-35-505-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-35-505-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Regular paper
| 
28 Mar 2017
Regular paper |
| 28 Mar 2017
Magnetic reconnection during steady magnetospheric convection and other magnetospheric modes
Laboratory for Planetary and Atmospheric Physics, University of
Liège, Liège, Belgium
Jean-Claude Gérard
Laboratory for Planetary and Atmospheric Physics, University of
Liège, Liège, Belgium
Steve E. Milan
Department of Physics and Astronomy, University of Leicester,
Leicester, UK
Stanley W. H. Cowley
Department of Physics and Astronomy, University of Leicester,
Leicester, UK
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Ann. Geophys., 33, 1203–1209, https://doi.org/10.5194/angeo-33-1203-2015, https://doi.org/10.5194/angeo-33-1203-2015, 2015
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Early models of the main auroral emission at Jupiter assumed axisymmetry, but significant local time variability is obvious on any image of the Jovian aurorae. Here we use Far-UV images from the Hubble Space Telescope to further characterise these variations on a statistical basis. We show that the dusk side sector is ~3 times brighter than the dawn side and we suggest that such an asymmetry could be the result of a partial ring current in the night side magnetosphere.
B. Bonfond, J. Gustin, J.-C. Gérard, D. Grodent, A. Radioti, B. Palmaerts, S. V. Badman, K. K. Khurana, and C. Tao
Ann. Geophys., 33, 1211–1219, https://doi.org/10.5194/angeo-33-1211-2015, https://doi.org/10.5194/angeo-33-1211-2015, 2015
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Early models of the main auroral emission at Jupiter assumed axisymmetry, but significant local time variability is obvious on any image of the Jovian aurorae. Here we use far-UV images from the Hubble Space Telescope to further characterize these variations on a statistical basis. We show that the dusk side sector is ~3 times brighter than the dawn side, and we suggest that such an asymmetry could be the result of a partial ring current in the nightside magnetosphere.
S. W. H. Cowley and G. Provan
Ann. Geophys., 33, 901–912, https://doi.org/10.5194/angeo-33-901-2015, https://doi.org/10.5194/angeo-33-901-2015, 2015
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We compare the reported properties of oscillations in Saturn's outer plasma environment near the ~10.6 hour planetary rotation period, as observed in magnetic field and radio emission data obtained by the Cassini spacecraft. We highlight similarities and differences, and suggest possible reasons for the latter.
E. S. Belenkaya, S. W. H. Cowley, C. J. Meredith, J. D. Nichols, V. V. Kalegaev, I. I. Alexeev, O. G. Barinov, W. O. Barinova, and M. S. Blokhina
Ann. Geophys., 32, 689–704, https://doi.org/10.5194/angeo-32-689-2014, https://doi.org/10.5194/angeo-32-689-2014, 2014
E. S. Belenkaya, S. W. H. Cowley, V. V. Kalegaev, O. G. Barinov, and W. O. Barinova
Ann. Geophys., 31, 1447–1458, https://doi.org/10.5194/angeo-31-1447-2013, https://doi.org/10.5194/angeo-31-1447-2013, 2013
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Remote sensing of the polar aurora and ionospheric convection is used to characterize the interaction between the solar wind and the Earth magnetosphere during steady magnetospheric convection (SMC) intervals and compare them with other previously studied geomagnetic conditions. It is found that the Earth magnetosphere may exhibit four different coupling modes ordered by increasing open magnetic flux and magnetic reconnection rate: quiet times, SMC, substorm and sawtooth events.
Remote sensing of the polar aurora and ionospheric convection is used to characterize the...
