000007516 001__ 7516
000007516 005__ 20250204104418.0
000007516 0247_ $$2DOI$$a10.1007/s11600-024-01421-4
000007516 037__ $$aSCART-2025-0115
000007516 100__ $$aDabrowski, Bartosz
000007516 245__ $$aFine structures of a solar type III radio bursts observed with LOFAR
000007516 260__ $$c2025
000007516 520__ $$aWe present spectral and imaging LOFAR (LOw-Frequency ARray) observations in the 20 – 40 MHz range of solar radio bursts fine structures, such as flag-like, sail-like, and dot-like that appeared on 8 April 2019. These structures were associated with type III solar radio bursts that occurred in the 40 – 80 MHz band. The mean duration and spectral widths of the fine structures range from 1.0 to 3.4 s and from 0.3 to 0.9 MHz, respectively. Additionally, we investigated the radio images of eight fine structures – two flags, two sails and four dots. This allowed us to determine their emission source sizes, which ranged from 240 to 392 arcmin2, and their frequencies from 25.58 to 39.25 MHz as well as their location. They occurred on the east side of the Sun and were most likely associated with an emerging active region NOAA AR 12738, where a weak B1.7 flare was observed.
000007516 594__ $$aNO
000007516 6531_ $$aSun
000007516 6531_ $$aRadio Bursts
000007516 6531_ $$aFine structures
000007516 6531_ $$aCorona
000007516 6531_ $$aLOFAR
000007516 700__ $$aWolowska, Aleksandra
000007516 700__ $$aVocks, Christian
000007516 700__ $$aMagdalenić, Jasmina
000007516 700__ $$aZhang, Peijin
000007516 700__ $$aFlisek, Pawel
000007516 700__ $$aBröse, Malte
000007516 700__ $$aMorosan, Diana E
000007516 700__ $$aKrankowski, Andrzej
000007516 700__ $$aFron, Adam
000007516 700__ $$aMann, Gottfried
000007516 700__ $$aZucca, Pietro
000007516 700__ $$aBisi, Mario
000007516 700__ $$aFallows, Richard
000007516 700__ $$aGallagher, Peter
000007516 700__ $$aMarqué, Christophe
000007516 700__ $$aMatyjasiak, Barbara
000007516 700__ $$aRothkaehl, Hanna
000007516 773__ $$c987-993$$n1$$pActa Geophysica$$v73$$y2025
000007516 8560_ $$fpavai.valliappan@ksb-orb.be
000007516 905__ $$apublished in
000007516 980__ $$aREFERD