View in EDS

Jets and Mirror Mode Waves in Earth's Magnetosheath.

Saved in:
Bibliographic Details
Title: Jets and Mirror Mode Waves in Earth's Magnetosheath.
Authors: Blanco‐Cano, X.1 (AUTHOR) xbc@igeofisica.unam.mx, Rojas‐Castillo, D.1 (AUTHOR), Kajdič, P.1 (AUTHOR), Preisser, L.2 (AUTHOR)
Source: Journal of Geophysical Research. Space Physics. Jul2023, Vol. 128 Issue 7, p1-16. 16p.
Subject Terms: Plasma sheaths, Microphysics, Dynamic pressure, Magnetotellurics, Distribution (Probability theory), Mirrors, Magnetic fields
Abstract: Magnetosheath jets are localized plasma structures with high dynamic pressure which are frequently observed downstream of the Earth's bow shock. In this work we analyze Magnetospheric MultiScale magnetic field and plasma data and show that jets can be found in the quasi‐perpendicular magnetosheath in regions permeated by Mirror mode waves (MMWs). We show that structures identified as jets by their enhanced dynamic pressure can have very different internal structure, with variable signatures in magnetic field magnitude and components, velocity, and density and can be associated to ion distribution functions of various types. This suggests that jets observed in the quasi‐perpendicular magnetosheath are generated by different mechanisms. We find that jets can be related to traveling foreshocks, flux transfer events, and some have MMWs inside them. Our results suggest that some jets have a local source and their formation does not depend on upstream structures. We find that different types of ion distributions can exist inside the jets, while in some cases anisotropic distributions are present, in others counterstreaming distributions exist. We also show that for jets with MMWs inside them, ion distributions can be modulated. This highlights the importance of using ion distributions to identify and classify different types of jets. Key Points: We study high speed magnetosheath jets coexisting with mirror mode wavesWe use Magnetospheric MultiScale data to show that high speed magnetosheath jets have a much more complex structure than previously thought. Velocity distribution functions can be a tool to describe the micro‐physics inside jetsHigh speed jets in the quasi‐perpendicular magnetosheath could have different generation mechanisms that those in the quasi‐parallel sheath [ABSTRACT FROM AUTHOR]
Copyright of Journal of Geophysical Research. Space Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: GreenFILE
FullText Text:
  Availability: 0
Header DbId: 8gh
DbLabel: GreenFILE
An: 167301419
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Jets and Mirror Mode Waves in Earth's Magnetosheath.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Blanco‐Cano%2C+X%2E%22">Blanco‐Cano, X.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xbc@igeofisica.unam.mx</i><br /><searchLink fieldCode="AR" term="%22Rojas‐Castillo%2C+D%2E%22">Rojas‐Castillo, D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kajdič%2C+P%2E%22">Kajdič, P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Preisser%2C+L%2E%22">Preisser, L.</searchLink><relatesTo>2</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Geophysical+Research%2E+Space+Physics%22">Journal of Geophysical Research. Space Physics</searchLink>. Jul2023, Vol. 128 Issue 7, p1-16. 16p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Plasma+sheaths%22">Plasma sheaths</searchLink><br /><searchLink fieldCode="DE" term="%22Microphysics%22">Microphysics</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+pressure%22">Dynamic pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetotellurics%22">Magnetotellurics</searchLink><br /><searchLink fieldCode="DE" term="%22Distribution+%28Probability+theory%29%22">Distribution (Probability theory)</searchLink><br /><searchLink fieldCode="DE" term="%22Mirrors%22">Mirrors</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+fields%22">Magnetic fields</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Magnetosheath jets are localized plasma structures with high dynamic pressure which are frequently observed downstream of the Earth's bow shock. In this work we analyze Magnetospheric MultiScale magnetic field and plasma data and show that jets can be found in the quasi‐perpendicular magnetosheath in regions permeated by Mirror mode waves (MMWs). We show that structures identified as jets by their enhanced dynamic pressure can have very different internal structure, with variable signatures in magnetic field magnitude and components, velocity, and density and can be associated to ion distribution functions of various types. This suggests that jets observed in the quasi‐perpendicular magnetosheath are generated by different mechanisms. We find that jets can be related to traveling foreshocks, flux transfer events, and some have MMWs inside them. Our results suggest that some jets have a local source and their formation does not depend on upstream structures. We find that different types of ion distributions can exist inside the jets, while in some cases anisotropic distributions are present, in others counterstreaming distributions exist. We also show that for jets with MMWs inside them, ion distributions can be modulated. This highlights the importance of using ion distributions to identify and classify different types of jets. Key Points: We study high speed magnetosheath jets coexisting with mirror mode wavesWe use Magnetospheric MultiScale data to show that high speed magnetosheath jets have a much more complex structure than previously thought. Velocity distribution functions can be a tool to describe the micro‐physics inside jetsHigh speed jets in the quasi‐perpendicular magnetosheath could have different generation mechanisms that those in the quasi‐parallel sheath [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Geophysical Research. Space Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=167301419
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1029/2022JA031221
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 1
    Subjects:
      – SubjectFull: Plasma sheaths
        Type: general
      – SubjectFull: Microphysics
        Type: general
      – SubjectFull: Dynamic pressure
        Type: general
      – SubjectFull: Magnetotellurics
        Type: general
      – SubjectFull: Distribution (Probability theory)
        Type: general
      – SubjectFull: Mirrors
        Type: general
      – SubjectFull: Magnetic fields
        Type: general
    Titles:
      – TitleFull: Jets and Mirror Mode Waves in Earth's Magnetosheath.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Blanco‐Cano, X.
      – PersonEntity:
          Name:
            NameFull: Rojas‐Castillo, D.
      – PersonEntity:
          Name:
            NameFull: Kajdič, P.
      – PersonEntity:
          Name:
            NameFull: Preisser, L.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 07
              Text: Jul2023
              Type: published
              Y: 2023
          Identifiers:
            – Type: issn-print
              Value: 21699380
          Numbering:
            – Type: volume
              Value: 128
            – Type: issue
              Value: 7
          Titles:
            – TitleFull: Journal of Geophysical Research. Space Physics
              Type: main
ResultId 1