Stallard, T.S.;
Miller, S.;
Cowley, S.W.H.;
Bunce, E.J.;
(2003)
Jupiter's polar ionospheric flows: measured intensity and velocity variations poleward of the main auroral oval.
Geophysical Research Letters
, 30
(5)
, Article 1221. 10.1029/2002GL016031.
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Abstract
Recent analysis of high-resolution spectra of Doppler-shifted H3+ emission from the auroral/polar regions of Jupiter revealed a complex wind system, with a persistent auroral electrojet and strong anti-sunward flows in a region of lesser intensity centred around the magnetic pole [ Stallard et al., 2001 ]. This region, which we have called the Dark Polar Region (DPR), is re-investigated, transforming the observed line-of-sight velocities into a frame of reference fixed with respect to the magnetic pole. The DPR is shown to include a region essentially stagnant in this frame of reference (the f-DPR). We identify it as a region coupled to open magnetotail field lines. There is also a transition region in which the ion velocity returns to corotation (the r-DPR).
| Type: | Article |
|---|---|
| Title: | Jupiter's polar ionospheric flows: measured intensity and velocity variations poleward of the main auroral oval |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1029/2002GL016031 |
| Publisher version: | http://dx.doi.org/10.1029/2002GL016031 |
| Language: | English |
| Additional information: | Copyright 2003 by the American Geophysical Union |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Science and Technology Studies UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/9772 |
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