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Spatial quasi-periodic variations of the plasma density and magnetic field in zebra radio sources

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00548132" target="_blank" >RIV/67985815:_____/21:00548132 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1051/0004-6361/202039850" target="_blank" >https://doi.org/10.1051/0004-6361/202039850</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1051/0004-6361/202039850" target="_blank" >10.1051/0004-6361/202039850</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Spatial quasi-periodic variations of the plasma density and magnetic field in zebra radio sources

  • Original language description

    We analyze seven zebra events in order to search for spatial variations in the plasma density and magnetic field in zebra-stripe sources.Methods. We used an improved method for estimating the gyroharmonic numbers of zebra-stripe frequencies. We compared observed zebra-stripe frequencies with those calculated in the zebra model. The differences in these frequencies vary and thus show spatial variations in the plasma density and magnetic field. In six out of seven analyzed zebras, we found a rather high correlation coefficient (about 0.7 and higher) between spatial variations in the density and magnetic field and a strictly periodic function. These density and magnetic field variations are explained by the torsional or sausage magnetoacoustic waves in the loop in which zebra-stripe sources are located. We present the wavelengths of these waves in dependence on the zebra frequency and estimate their periods.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10308 - Astronomy (including astrophysics,space science)

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Astronomy & Astrophysics

  • ISSN

    0004-6361

  • e-ISSN

    1432-0746

  • Volume of the periodical

    6469

  • Issue of the periodical within the volume

    February

  • Country of publishing house

    FR - FRANCE

  • Number of pages

    6

  • Pages from-to

    A179

  • UT code for WoS article

    000623239500002

  • EID of the result in the Scopus database

    2-s2.0-85101587107