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Source region and growth analysis of narrowband Z-mode emission at Saturn

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10336423" target="_blank" >RIV/00216208:11320/16:10336423 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1002/2016JA022913" target="_blank" >http://dx.doi.org/10.1002/2016JA022913</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/2016JA022913" target="_blank" >10.1002/2016JA022913</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Source region and growth analysis of narrowband Z-mode emission at Saturn

  • Original language description

    Intense Z-mode emission is observed in the lower density region near the inner edge of the Enceladus torus at Saturn, where these waves may resonate with MeV electrons. The source mechanism of this emission, which is narrow-banded and most intense near 5 kHz, is not well understood. We survey the Cassini Radio and Plasma Wave Science data to isolate several probable source regions near the inner edge of the Enceladus density torus. Electron phase space distributions are obtained from the Cassini Electron Spectrometer, part of the Cassini Plasma Spectrometer investigation. We perform a plasma wave growth analysis to conclude that an electron temperature anisotropy and possibly a weak loss cone can drive the Z mode as observed. Electrostatic electron acoustic waves and perhaps weak beam modes are also found to be unstable coincident with the Z mode. Quasi-steady conditions near the Enceladus density torus may result in the observations of narrowband Z-mode emission at Saturn.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BL - Plasma physics and discharge through gases

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/LH14010" target="_blank" >LH14010: Propagation of waves in the radiation belt region: analysis of measurements of the NASA Van Allen Probes mission</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Geophysical Research - Space Physics

  • ISSN

    2169-9380

  • e-ISSN

  • Volume of the periodical

    121

  • Issue of the periodical within the volume

    12

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    14

  • Pages from-to

    11929-11942

  • UT code for WoS article

    000393183300021

  • EID of the result in the Scopus database

    2-s2.0-85007110640