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Slow electron phase space holes: Magnetotail observations
Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen.
Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen.
Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen.ORCID iD: 0000-0003-1654-841x
Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen.
2015 (English)In: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 42, no 6, p. 1654-1661Article in journal (Refereed) Published
Abstract [en]

We report multispacecraft observations of slow electrostatic solitary waves in the plasma sheet boundary layer. The electrostatic solitary waves are embedded in a region with field-aligned electron flows and are interpreted as electron phase space holes. We make unambiguous velocity and length estimates of the electron holes, v(EH)approximate to 500 km/s and l(||)approximate to 2-4(De), where l(||) is the parallel half width. We do not detect any magnetic signature of the holes. The electrostatic potentials of the holes are of the order e/k(B)T(e)approximate to 10%, indicating that they can affect electron motion and further couple the electron and ion dynamics.

Place, publisher, year, edition, pages
2015. Vol. 42, no 6, p. 1654-1661
Keywords [en]
slow electron holes, multispacecraft
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-253559DOI: 10.1002/2015GL063218ISI: 000353170000006Scopus ID: 2-s2.0-84927747899OAI: oai:DiVA.org:kth-253559DiVA, id: diva2:1325434
Note

QC 20190617

Available from: 2019-06-15 Created: 2019-06-15 Last updated: 2020-01-30Bibliographically approved

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Norgren, CeciliaAndré, MatsVaivads, AndrisKhotyaintsev, Yuri V.

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