Chromospheric and Coronal Radio Sources from Observations of the Partial Solar Eclipse of March 20, 2015, at the Mountain Astronomical Station of the Central Astronomical Observatory
- Authors: Shramko A.D.1, Guseva S.A.1
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Affiliations:
- Mountain Astronomical Station, Central Astronomical Observatory
- Issue: Vol 58, No 4 (2018)
- Pages: 464-468
- Section: Article
- URL: https://journals.rcsi.science/0016-7932/article/view/156807
- DOI: https://doi.org/10.1134/S0016793218040163
- ID: 156807
Cite item
Abstract
This paper presents the results of processing the data on the partial solar eclipse that occurred on March 20, 2015, and was observed with the RT-3 (λ = 4.9 cm) and RT-2 (λ = 3.2 cm) radio telescopes of the Kislovodsk Mountain Astronomical Station, Central Astronomical Observatory, Russian Academy of Sciences (MAS CAO RAS). They were compared with observations in the optical and X-ray ranges. The local radio sources at the limb and on the disc of the Sun were identified: an eruptive and a quiet prominence; filaments; a coronal hole; facular plages; and a sunspot group. The curves of the center-to-limb variations in the radio brightness of the undisturbed regions of the Sun were plotted for λ = 4.9 and λ = 3.2 cm. The solar radio maps were presented. The altitude of the radiating layer in the chromosphere above the sunspot and the facular sources for λ = 4.9 cm λ = 3.2 cm was compared.
About the authors
A. D. Shramko
Mountain Astronomical Station, Central Astronomical Observatory
Author for correspondence.
Email: a_shramko@inbox.ru
Russian Federation, Kislovodsk
S. A. Guseva
Mountain Astronomical Station, Central Astronomical Observatory
Email: a_shramko@inbox.ru
Russian Federation, Kislovodsk
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