An In Situ Interplanetary “U-burst”: Observation and Results
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F20%3A00539563" target="_blank" >RIV/68378289:_____/20:00539563 - isvavai.cz</a>
Result on the web
<a href="http://arxiv.org/pdf/1910.04306" target="_blank" >http://arxiv.org/pdf/1910.04306</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-4357/ab96c3" target="_blank" >10.3847/1538-4357/ab96c3</a>
Alternative languages
Result language
angličtina
Original language name
An In Situ Interplanetary “U-burst”: Observation and Results
Original language description
We report and examine the observation of an unusual and rare in situ electron observation associated with a solar type III radio burst on 1996 December 24. This radio event was accompanied by high-energy electrons, measured by the Solid State Telescope on board the Wind spacecraft. The type III radio emission started at 13:10 UTC and was associated with a C2.1 GOES-class flare whose maximum was at 13:11 UTC and hosted by the active region NOAA 8007/8004, located on the west limb at N05 degrees W74 degrees/N06 degrees W85 degrees. During this event, the observation of an electron energy distribution likely to be associated with the radio emission was registered. The electrons arrive at the spacecraft predominantly from the antisolar direction, suggesting that their general motion is sunward along a closed magnetic field line. Leblanc et al. propose a model in which energetic electrons are injected into a coronal flux tube at one of its footpoints, releasing standard type-III emission. As the magnetic field then directs them back toward the magnetic-conjugate footpoint of the first, the electrons release subsequent emission whose radio profile is a quasi-time reversal of the standard. We have constructed a cylindrical flux rope facsimile of this scenario that reproduces the U-burst profiles. We also report observational features indicating a secondary electron energy distribution and propose a scenario that explains this feature.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/GJ17-06818Y" target="_blank" >GJ17-06818Y: Heliospheric remote sensing and in situ observations applicable to space weather forecasting</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal
ISSN
0004-637X
e-ISSN
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Volume of the periodical
897
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
170
UT code for WoS article
000553808800001
EID of the result in the Scopus database
2-s2.0-85091459106