Circular polarization of millimeter emission from solar flares

Main Article Content

Vladimir Ryzhov
Polina Shivrina
Victoria Smirnova

Abstract

We present new observations of circular polarization of solar flares observed with the Bauman Moscow State Technical University radio telescope RT-7.5 at a frequency of 93 GHz. Time profiles of the right and left circular polarization intensity of radio emission obtained for several flare events are analyzed. It was shown that the upper limit of the degree of circular polarization for the maximum phase of the studied flares is ∼5%.

Keywords: Sun, radio emission, polarization of millimeter emission, polarization receiver

Supporting Agencies

This work was partially supported by the RFBR grant No. 20-52-26006 Czech Republic_a and the Ministry of Education and Science research project No. 1021051101548-7- 1.3.8.

Article Details

Section

Magnetism and Activity of the Sun - 2022 Conference proceedings

How to Cite

Ryzhov V., Shivrina P., Smirnova V., 2024. Acta Astrophysica Taurica, vol. 5, no. 4, pp. 29–34. Available at: https://astrophysicatauricum.org/index.php/aat/article/view/94 (Accessed: 21 March 2026)

References

Altyntsev A., Meshalkina N., Myshyakov I., Pal’shin V., Fleishman G., 2017. Solar Phys., vol. 292, iss. 9, p. 137.

Silva D.F., Valio A.B.M., 2016. In Dorotovic I. et al. (Eds), Millimeter observation of solar flares with polarization. ASP Conf. Ser., San Francisco: ASP, vol. 504, p. 55.

Smirnova V.V., Tsap Yu.T., Shumov A.V., et al., 2017. Radiostroenie, no. 6, pp. 14–26. (In Russ.)

Tsap Yu.T., Smirnova V.V., Motorina G.G., et al., 2018. Solar Phys., vol. 293, no. 3, p. 50.