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Observation of O+4P-D-4(0) lines in proton aurora over Svalbard
KTH, Superseded Departments, Alfvén Laboratory.ORCID iD: 0000-0003-2422-5426
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2004 (English)In: Geophysical Research Letters, ISSN 0094-8276, Vol. 31, no 10Article in journal (Refereed) Published
Abstract [en]

Spectra of a proton aurora event show lines of O+ P-4-D-4(0) multiplet (4639-4696 Angstrom) enhanced relative to the N(2)(+)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 N(2)(+)1N emissions. The emission cross-section of the multiplet in p collisions with O and O-2 estimated from published work does not explain the observed O+ brightness, suggesting a higher emission cross-section for low energy p impact on O.

Place, publisher, year, edition, pages
2004. Vol. 31, no 10
Keyword [en]
cross-sections, electron, excitation, ionization, ionosphere, transport, oxygen, n2
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:kth:diva-23487DOI: 10.1029/2003GL019313ISI: 000221910200001ScopusID: 2-s2.0-4143058032OAI: diva2:342185
QC 20100525 QC 20111027Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2011-10-27Bibliographically approved

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Ivchenko, Nickolay V.
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