Source regions of the type II radio burst observed during a CME–CME interaction on 2013 May 22

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F16%3A00462222" target="_blank" >RIV/68378289:_____/16:00462222 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3847/0004-637X/827/2/141" target="_blank" >http://dx.doi.org/10.3847/0004-637X/827/2/141</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/0004-637X/827/2/141" target="_blank" >10.3847/0004-637X/827/2/141</a>

Result language

angličtina

Original language name

Source regions of the type II radio burst observed during a CME–CME interaction on 2013 May 22

Original language description

We report on our study of radio source regions during the type II radio burst on 2013 May 22 based on direction-finding analysis of the Wind/WAVES and STEREO/WAVES (SWAVES) radio observations at decameter–hectometric wavelengths. The type II emission showed an enhancement that coincided with the interaction of two coronal mass ejections (CMEs) launched in sequence along closely spaced trajectories. The triangulation of the SWAVES source directions posited the ecliptic projections of the radio sources near the line connecting the Sun and the STEREO-A spacecraft. The WAVES and SWAVES source directions revealed shifts in the latitude of the radio source, indicating that the spatial location of the dominant source of the type II emission varies during the CME–CME interaction. The WAVES source directions close to 1 MHz frequencies matched the location of the leading edge of the primary CME seen in the images of the LASCO/C3 coronagraph. This correspondence of spatial locations at both wavelengths confirms that the CME–CME interaction region is the source of the type II enhancement. Comparison of radio and white-light observations also showed that at lower frequencies scattering significantly affects radio wave propagation.

Czech name

—

Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

—

Project

<a href="/en/project/GAP209%2F12%2F2394" target="_blank" >GAP209/12/2394: The role of low frequency plasma waves in large scale dynamics of planetary magnetospheres</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Astrophysical Journal

ISSN

0004-637X

e-ISSN

—

Volume of the periodical

827

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

"141/1"-"141/7"

UT code for WoS article

000384001600053

EID of the result in the Scopus database

2-s2.0-84984700589