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Signatures of red-shifted foot points in the quiescent coronal loop system

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F19%3A43900773" target="_blank" >RIV/60076658:12310/19:43900773 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.ann-geophys.net/37/765/2019/angeo-37-765-2019.pdf" target="_blank" >https://www.ann-geophys.net/37/765/2019/angeo-37-765-2019.pdf</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.5194/angeo-37-765-2019" target="_blank" >10.5194/angeo-37-765-2019</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Signatures of red-shifted foot points in the quiescent coronal loop system

  • Original language description

    We observed quiescent coronal loops using multi-wavelength observations from the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO) on 13 April 2016. The flows at the foot points of such loop systems are studied using spectral data from the Interface Region Imaging Spectrograph (IRIS). The Doppler velocity distributions at the foot points lying in the moss region show the negligible or small flows at the Ni I, MgII k3, and C II line corresponding to upper photospheric and chromo-spheric emissions. Significant red shifts (downflows) ranging from 1 to 7 kms(-1) are observed at Si IV (1393.78 angstrom; log(T=K/D 4.8), which is found to be consistent with the existing results regarding dynamical loop systems and moss regions. Such downflows agree well with the impulsive heating mechanism reported earlier.

  • 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

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2019

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Annales Geophysicae

  • ISSN

    0992-7689

  • e-ISSN

  • Volume of the periodical

    37

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    9

  • Pages from-to

    765-773

  • UT code for WoS article

    000484051300001

  • EID of the result in the Scopus database