Parker Solar Probe detects solar radio bursts related with a behind-the-limb active region

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00552674" target="_blank" >RIV/67985815:_____/22:00552674 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202141984" target="_blank" >https://doi.org/10.1051/0004-6361/202141984</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202141984" target="_blank" >10.1051/0004-6361/202141984</a>

Result language
angličtina
Original language name
Parker Solar Probe detects solar radio bursts related with a behind-the-limb active region
Original language description
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 ground-based instruments and behind the solar limb of the PSP spacecraft. We used a subarray of the Giant Ukrainian Radio Telescope to get the spectral properties of radio bursts at the frequency range of 8-80 MHz, as well as the PSP radio instruments with a bandwidth of 10.5 kHz-19.2 MHz, during solar observations on June 5, 2020.nResults: We directly detected the radio events initiated by the active region behind the solar limb of the PSP spacecraft, using special conditions in the solar corona, due to the absence of active regions from the PSP side. Following the generation mechanism of solar radio emission, we refined the density model for the solar corona above the active region 12765 responsible for the radio bursts. Based on the PSP spacecraft position near the Sun and delays of radio waves between space- and ground-based records, we found the corresponding radio responses on the PSP spectrogram. The absence of sunspots from the PSP side contributes to the propagation of radio waves from a dense loop of the Sun to quiet regions with low densities, through which PSP instruments can detect the radiation.
Czech name
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Czech description
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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
10308 - Astronomy (including astrophysics,space science)

Project
<a href="/en/project/GC20-09922J" target="_blank" >GC20-09922J: Understanding modern radioastronomical observations via advanced astrophysical plasma simulations</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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