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  High‐density O+ in Earth's outer magnetosphere and its effect on dayside magnetopause magnetic reconnection

Fuselier, S. A., Mukherjee, J., Denton, M. H., Petrinec, S. M., Trattner, K. J., Toledo‐Redondo, S., et al. (2019). High‐density O+ in Earth's outer magnetosphere and its effect on dayside magnetopause magnetic reconnection. Journal of Geophysical Research: Space Physics, 124(12), 10257-10269. doi:10.1029/2019JA027396.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-AD27-D Version Permalink: http://hdl.handle.net/21.11116/0000-0005-AD28-C
Genre: Journal Article
Other : High‐density O+ in Earth's outer magnetosphere and its effect on dayside magnetopause magnetic reconnection

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 Creators:
Fuselier, S. A., Author
Mukherjee, J., Author
Denton, M. H., Author
Petrinec, S. M., Author
Trattner, K. J., Author
Toledo‐Redondo, S., Author
André, M., Author
Aunai, N., Author
Chappell, C. R., Author
Glocer, A., Author
Haaland, Stein1, Author              
Hesse, M., Author
Kistler, L. M., Author
Lavraud, B., Author
Li, W. Y., Author
Moore, T. E., Author
Graham, D., Author
Tenfjord, P., Author
Dargent, J., Author
Vines, S. K., Author
Strangeway, R. J., AuthorBurch, J. L., Author more..
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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 Abstract: The warm plasma cloak is a source of magnetospheric plasma that contain significant O+. When the O+ density in the magnetosphere near the magnetopause is >0.2 cm-3 and the H+ density is <1.5 cm-3, then O+ dominates the magnetospheric ion mass density by more than a factor of 2. A survey is conducted of such O+‐rich warm plasma cloak intervals and their effect on reconnection at the Earth's magnetopause. The survey uses data from the Magnetospheric Multiscale mission (MMS) and the results are compared and combined with a previous survey of the warm plasma cloak. Overall, the warm plasma cloak and the O+‐rich warm plasma cloak reduce the magnetopause reconnection rate by >20% due to mass‐loading only about 2% to 4% of the time. However, during geomagnetic storms, O+ dominates the mass density of the warm plasma cloak and these mass densities are very high. Therefore, a separate study is conducted to determine the effect of the warm plasma cloak on magnetopause reconnection during geomagnetically disturbed times. This study shows that the warm plasma cloak reduces the reconnection rate significantly about 25% of the time during disturbed conditions.

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Language(s): eng - English
 Dates: 20192019
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1029/2019JA027396
 Degree: -

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Title: Journal of Geophysical Research: Space Physics
  Other : JGR-A
  Abbreviation : J. Geophys. Res. - A
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Washington, D.C. : American Geophysical Union
Pages: - Volume / Issue: 124 (12) Sequence Number: - Start / End Page: 10257 - 10269 Identifier: ISSN: 0148-0227
CoNE: https://pure.mpg.de/cone/journals/resource/991042728714264