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Interferometric imaging of the type IIIb and U radio bursts observed with LOFAR on 22 August 2017
Context. The Sun is the source of different types of radio bursts that are associated with solar flares, for example. Among the most frequently observed phenomena are type III solar bursts. Their radio images at low frequencies (below 100 MHz) are relatively poorly studied due to the limitations of legacy radio telescopes. \ Aims: We study the general characteristics of types IIIb and U with stria structure solar radio bursts in the frequency range of 20-80 MHz, in particular the source size and evolution in different altitu ...
Dabrowski, Bartosz; Miku\la, Katarzyna; Flisek, Pawe\l; Vocks, Christian; Zhang, PeiJin; c, Jasmina; Warmuth, Alexander; Morosan, Diana; n, Adam; Fallows, Richard; Bisi, Mario; Krankowski, Andrzej; Mann, Gottfried; B\laszkiewicz, Leszek; Carley, Eoin; Gallagher, Peter; Zucca, Pietro; Rudawy, Pawe\l; Hajduk, Marcin; Kotulak, Kacper; Sidorowicz, Tomasz;
Published by: \aap Published on: jan
YEAR: 2023 DOI: 10.1051/0004-6361/202142905
Parker Data Used; Sun: radio radiation; Sun: UV radiation; Sun: activity; methods: observational; Astrophysics - Solar and Stellar Astrophysics
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Parker Solar Probe detects solar radio bursts related with a behind-the-limb active region
Context. The interpretation of solar radio bursts observed by Parker Solar Probe (PSP) in the encounter phase plays a key role in understanding intrinsic properties of the emission mechanism in the solar corona. Lower time-frequency resolution of the PSP receiver can be overcome by simultaneous ground-based observations using more advanced antennas and receivers. \ Aims: In this paper we present such observations for which the active active region 12 765, begetter of type III, J, and U solar bursts, was within sight of groun ...
Stanislavsky, Aleksander; Bubnov, Igor; Koval, Artem; Yerin, Serge;
Published by: \aap Published on: jan
YEAR: 2022 DOI: 10.1051/0004-6361/202141984
Parker Data Used; Sun: activity; Sun: corona; Sun: radio radiation; methods: observational; space vehicles; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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Detection of small magnetic flux ropes from the third and fourth Parker Solar Probe encounters
Context.
Aims: We systematically search for magnetic flux rope structures in the solar wind to within the closest distance to the Sun of ~0.13 AU, using data from the third and fourth orbits of the Parker Solar Probe.
Methods: We extended our previous magnetic helicity-based technique of identifying magnetic flux rope structures. The method was improved upon to incorporate the azimuthal flow, which becomes larger as the spacecraft approaches the Sun.
Results: A total of 21 and 34 magnetic flux ropes are ...
Zhao, L.; Zank, G.; Hu, Q.; Telloni, D.; Chen, Y.; Adhikari, L.; Nakanotani, M.; Kasper, J.; Huang, J.; Bale, S.; Korreck, K.; Case, A.; Stevens, M.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Larson, D.; Livi, R.; Whittlesey, P.; Klein, K.; Raouafi, N.;
Published by: Astronomy and Astrophysics Published on: 06/2021
YEAR: 2021 DOI: 10.1051/0004-6361/202039298
Solar wind; Sun: magnetic fields; turbulence; methods: observational; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics; Parker Data Used
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