Počet záznamů: 1
An In Situ Interplanetary “U-burst”: Observation and Results
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SYSNO ASEP 0539563 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název An In Situ Interplanetary “U-burst”: Observation and Results Tvůrce(i) Oliveros, J.C.M. (US)
Castillo, S.M.D. (US)
Krupař, Vratislav (UFA-U) RID, ORCID
Pulupa, M. (US)
Bale, S. D. (US)
Calvo-Mozo, B. (CO)Celkový počet autorů 6 Číslo článku 170 Zdroj.dok. Astrophysical Journal - ISSN 0004-637X
Roč. 897, č. 2 (2020)Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Radio Bursts ; Electrostatic Waves ; Interplanetary Medium ; Solar coronal mass ejections Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) CEP GJ17-06818Y GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFA-U - RVO:68378289 UT WOS 000553808800001 EID SCOPUS 85091459106 DOI 10.3847/1538-4357/ab96c3 Anotace 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. Pracoviště Ústav fyziky atmosféry Kontakt Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Rok sběru 2021 Elektronická adresa http://arxiv.org/pdf/1910.04306
Počet záznamů: 1