Search Results - "Provan, G."

Inter‐Orbit Variability of Jupiter's Current Sheet Morphology.

Authors: Santos, A. Achilleos, N. Millas, D. et al.

Source: Journal of Geophysical Research. Space Physics. Jun2026, Vol. 131 Issue 6, p1-24. 24p.

Subject Terms: Current sheets, Magnetosphere, Plasma flow, Solar wind, Magnetospheric physics, Magnetopause, Juno (Space probe), Plasma currents

Juno Observations of Large‐Scale Azimuthal Fields and Flows in Jupiter's Nightside Magnetosphere: Field‐Aligned Currents, Effective Ionospheric Pedersen Conductivity, and Power to Atmospheric Heating.

Authors: Provan, G. Cowley, S. W. H. Nichols, J. D. et al.

Source: Journal of Geophysical Research. Space Physics. Apr2026, Vol. 131 Issue 4, p1-28. 28p.

Subject Terms: Electric currents, Juno (Space probe), Magnetosphere, Magnetic fields, Thermosphere, Magnetospheric physics

Juno Observations of Large‐Scale Azimuthal Fields in Jupiter's Nightside Magnetosphere: Extended Analysis and Physical Implications.

Authors: Cowley, S. W. H. Provan, G. Nichols, J. D.

Source: Journal of Geophysical Research. Space Physics. Aug2025, Vol. 130 Issue 8, p1-25. 25p.

Subject Terms: Jupiter (Planet), Magnetosphere, Plasma flow, Magnetic coupling, Time, Juno (Space probe), Magnetic fields, Torque

Modeling Jupiter's Dawnside Magnetodisc: Using Juno Observations to Constrain a Radial Force‐Balance Model.

Authors: Provan, G. Nichols, J. D. Cowley, S. W. H. et al.

Source: Journal of Geophysical Research. Space Physics. Apr2025, Vol. 130 Issue 4, p1-22. 22p.

Subject Terms: Magnetic field measurements, Plasma currents, High temperature plasmas, Low temperature plasmas, Current distribution

Juno Observations of Large‐Scale Azimuthal Fields in Jupiter's Nightside Magnetosphere and Related Radial Currents.

Authors: Provan, G. Cowley, S. W. H. Nichols, J. D.

Source: Journal of Geophysical Research. Space Physics. Oct2024, Vol. 129 Issue 10, p1-30. 30p.

Subject Terms: Juno (Space probe), Current sheets, Magnetosphere, Data binning, Jupiter (Planet)

Auroral Field‐Aligned Current Signatures in Jupiter's Magnetosphere: Juno Magnetic Field Observations and Physical Modeling.

Authors: Kamran, A. Bunce, E. J. Cowley, S. W. H. et al.

Source: Journal of Geophysical Research. Space Physics. Dec2022, Vol. 127 Issue 12, p1-20. 20p.

Subject Terms: Magnetic fields, Magnetosphere, Juno (Space probe), Jupiter (Planet), Current sheets

Planetary period oscillations in Saturn's magnetosphere: comments on the relation between post-equinox periods determined from magnetic field and SKR emission data.

Authors: Cowley, S. W. H. Provan, G.

Source: Annales Geophysicae (ANGEO) (09927689). 2015, Vol. 33 Issue 7, p901-912. 12p.

The Response of Saturn's Dawn Field‐Aligned Currents to Magnetospheric and Ring Current Conditions During Cassini's Proximal Orbits: Evidence for a Region 2 Response at Saturn.

Authors: Hunt, G. J. Provan, G. Bradley, T. J. et al.

Source: Journal of Geophysical Research. Space Physics. Jun2022, Vol. 127 Issue 6, p1-15. 15p.

Subject Terms: *Earth currents, Saturn (Planet), Current sheets, Orbits (Astronomy), Magnetosphere

Detection of Equatorial Plasma Velocity Modulations Associated With Planetary Period Oscillations in Saturn's Magnetosphere.

Authors: Bradley, T. J. Provan, G. Cowley, S. W. H. et al.

Source: Journal of Geophysical Research. Space Physics. May2022, Vol. 127 Issue 5, p1-18. 18p.

Subject Terms: Saturn (Planet), Oscillations, Magnetosphere, Phase oscillations, Ion migration & velocity, Quasi-biennial oscillation (Meteorology)

Planetary Period Oscillations of Saturn's Dayside Equatorial Ionospheric Electron Density Observed on Cassini's Proximal Passes.

Authors: Provan, G. Cowley, S. W. H. Bunce, E. J. et al.

Source: Journal of Geophysical Research. Space Physics. Sep2021, Vol. 126 Issue 9, p1-25. 25p.

Subject Terms: Electron density, Magnetosphere, Solar magnetism, Atmospheric ion precipitation, Magnetic reconnection

Physical Origin of Recurrent Magnetic Dipolarization Events in Saturn's Equatorial Plasma Sheet.

Authors: Cowley, S. W. H. Provan, G.

Source: Journal of Geophysical Research. Space Physics. Aug2021, Vol. 126 Issue 8, p1-27. 27p.

Subject Terms: *Equatorial currents, Saturn (Planet), Ion flow dynamics, Spheromaks, Planetary rotation

Saturn's Nightside Ring Current During Cassini's Grand Finale.

Authors: Provan, G. Bradley, T. J. Bunce, E. J. et al.

Source: Journal of Geophysical Research. Space Physics. Mar2021, Vol. 126 Issue 3, p1-33. 33p.

Subject Terms: *Equatorial currents, Magnetotails, Magnetic fields, Solar wind

Company/Entity: Cassini (Spacecraft)

Seasonal Dependence of the Magnetospheric Drag Torque on Saturn's Northern and Southern Polar Thermospheres and its Relation to the Periods of Planetary Period Oscillations.

Authors: Cowley, S. W. H. Achilleos, N. Bradley, T. J. et al.

Source: Journal of Geophysical Research. Space Physics. Sep2020, Vol. 125 Issue 9, p1-21. 21p.

Subject Terms: *Atmosphere, Magnetospheric currents, Thermosphere, Magnetic fields, Oscillations

Saturn's Nightside Dynamics During Cassini's F Ring and Proximal Orbits: Response to Solar Wind and Planetary Period Oscillation Modulations.

Authors: Bradley, T. J. Cowley, S. W. H. Bunce, E. J. et al.

Source: Journal of Geophysical Research. Space Physics. Sep2020, Vol. 125 Issue 9, p1-39. 39p.

Subject Terms: *Solar activity, Space vehicles, Magnetosphere, Magnetic fields, Rotation of the Sun

Saturn's Auroral Field‐Aligned Currents: Observations From the Northern Hemisphere Dawn Sector During Cassini's Proximal Orbits.

Authors: Hunt, G. J. Bunce, E. J. Cao, H. et al.

Source: Journal of Geophysical Research. Space Physics. May2020, Vol. 125 Issue 5, p1-18. 18p.

Subject Terms: Saturn (Planet), Magnetosphere, Current density (Electromagnetism), Electrons

Geographic Terms: Northern Hemisphere

Modeling the Temporal Variability in Saturn's Magnetotail Current Sheet From the Cassini F‐ring Orbits.

Authors: Agiwal, O. Hunt, G. J. Dougherty, M. K. et al.

Source: Journal of Geophysical Research. Space Physics. Mar2020, Vol. 125 Issue 3, p1-15. 15p.

Subject Terms: Magnetotails, Magnetosphere, Magnetic fields, Solar wind

Company/Entity: Cassini (Spacecraft)

Tracking Counterpart Signatures in Saturn's Auroras and ENA Imagery During Large‐Scale Plasma Injection Events.

Authors: Kinrade, J. Badman, S. V. Paranicas, C. et al.

Source: Journal of Geophysical Research. Space Physics. Feb2020, Vol. 125 Issue 2, p1-19. 19p.

Subject Terms: Auroras, Saturn (Planet), Magnetospheric physics, Spheromaks, Remote sensing

Magnetic Field Observations on Cassini's Proximal Periapsis Passes: Planetary Period Oscillations and Mean Residual Fields.

Authors: Provan, G. Cowley, S. W. H. Bradley, T. J. et al.

Source: Journal of Geophysical Research. Space Physics. Nov2019, Vol. 124 Issue 11, p8814-8864. 51p.

Subject Terms: Magnetic fields, Oscillations, Saturn (Planet), Magnetosphere, Latitude

The Structure of Planetary Period Oscillations in Saturn's Equatorial Magnetosphere: Results From the Cassini Mission.

Authors: Andrews, D. J. Cowley, S. W. H. Provan, G. et al.

Source: Journal of Geophysical Research. Space Physics. Nov2019, Vol. 124 Issue 11, p8361-8395. 35p.

Subject Terms: Oscillations, Magnetosphere, Magnetic fields, Saturn (Planet)

Company/Entity: United States. National Aeronautics & Space Administration

Currents Associated With Saturn's Intra‐D Ring Azimuthal Field Perturbations.

Authors: Hunt, G.J. Cowley, S.W.H. Provan, G. et al.

Source: Journal of Geophysical Research. Space Physics. Jul2019, Vol. 124 Issue 7, p5675-5691. 17p.

Subject Terms: *Ionosphere, Rings of Saturn, Perturbation theory, Planetary atmospheres, Azimuth