Ivchenko, N.;
Galand, M.;
Lanchester, B.S.;
Rees, M.H.;
Lummerzheim, D.;
Furniss, I.;
Fordham, J.;
(2004)
Observation of O+ 4P-4D0 lines in proton aurora over Svalbard.
Geophysical Research Letters
, 31
(10)
, Article L10807. 10.1029/2003GL019313.
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Abstract
Spectra of a proton aurora event show lines of O+ 4P-4D0 multiplet (4639–4696 Å) enhanced relative to the N2 +1N(0,2) compared to normal electron aurora. Conjugate satellite particle measurements are used as input to electron and proton transport models, to show that p/H precipitation is the dominant source of both the O+ and N2 +1N emissions. The emission cross-section of the multiplet in p collisions with O and O2 estimated from published work does not explain the observed O+ brightness, suggesting a higher emission cross-section for low energy p impact on O.
| Type: | Article |
|---|---|
| Title: | Observation of O+ 4P-4D0 lines in proton aurora over Svalbard |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1029/2003GL019313 |
| Publisher version: | http://dx.doi.org/10.1029/2003GL019313 |
| Language: | English |
| Additional information: | Copyright 2004 by the American Geophysical Union |
| UCL classification: | 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/9534 |
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