Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 33, issue 3
Articles | Volume 33, issue 3
https://doi.org/10.5194/angeo-33-333-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-33-333-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 33, issue 3
Regular paper
 | 
17 Mar 2015
Regular paper |  | 17 Mar 2015

Outflow of low-energy O+ ion beams observed during periods without substorms

G. K. Parks, E. Lee, S. Y. Fu, M. Fillingim, I. Dandouras, Y. B. Cui, J. Hong, and H. Rème

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Latest update: 24 Apr 2024
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Short summary
Ions from Earth's ionosphere continually escape into space. This article examines ions escaping the auroral oval, a region in the polar region of Earth where auroras occur. Previous works have shown that ionospheric ions escape during active auroras, and more as the intensity of the aurora increases. In contrast, we have examined times of no auroras and find that ions are still escaping the auroral ionosphere. These escaping ions are an important source of auroral ions in the magnetosphere.
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