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  • Wang, R.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.;Univ Calif Berkeley, Phys Dept, Berkeley, CA 94720 USA. (author)

Electrostatic Turbulence and Debye-scale Structures in Collisionless Shocks

  • Article/chapterEnglish2020

Publisher, publication year, extent ...

  • 2020-01-20
  • IOP PUBLISHING LTD,2020
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-271752
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-271752URI
  • https://doi.org/10.3847/2041-8213/ab6582DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20200408
  • We present analysis of more than 100 large-amplitude bipolar electrostatic structures in a quasi-perpendicular supercritical Earth's bow shock crossing, measured by the Magnetospheric Multiscale spacecraft. The occurrence of the bipolar structures is shown to be tightly correlated with magnetic field gradients in the shock transition region. The bipolar structures have negative electrostatic potentials and spatial scales of a few Debye lengths. The bipolar structures propagate highly oblique to the shock normal with velocities (in the plasma rest frame) of the order of the ion-acoustic velocity. We argue that the bipolar structures are ion phase space holes produced by the two-stream instability between incoming and reflected ions. This is the first identification of the ion two-stream instability in collisionless shocks.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Vasko, I. Y.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. (author)
  • Mozer, F. S.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. (author)
  • Bale, S. D.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.;Univ Calif Berkeley, Phys Dept, Berkeley, CA 94720 USA. (author)
  • Artemyev, A. V.Russian Acad Sci, Space Res Inst, Moscow, Russia.;Univ Calif Los Angeles, Inst Geophys & Planetary Sci, Los Angeles, CA 90024 USA. (author)
  • Bonnell, J. W.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. (author)
  • Ergun, R.Univ Colorado, Boulder, CO 80309 USA. (author)
  • Giles, B.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA. (author)
  • Lindqvist, Per-ArneKTH,Rymd- och plasmafysik(Swepub:kth)u1yukyk9 (author)
  • Russell, C. T.Univ Calif Los Angeles, Inst Geophys & Planetary Sci, Los Angeles, CA 90024 USA. (author)
  • Strangeway, R.Univ Calif Los Angeles, Inst Geophys & Planetary Sci, Los Angeles, CA 90024 USA. (author)
  • Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.;Univ Calif Berkeley, Phys Dept, Berkeley, CA 94720 USA.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. (creator_code:org_t)

Related titles

  • In:Astrophysical Journal Letters: IOP PUBLISHING LTD889:12041-82052041-8213

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