Observation of Type-II and Type-IV Solar Radio Burst Associated with an M-Class Solar Flare and an Impulsive CME

Syed Zaiful Hamzah, S.N.A; Hamidi, Z.S.

doi:10.7187/GJATSI062022-5

Authors

Syed Zaiful Hamzah, S.N.A Faculty of Applied Sciences, Universiti Teknologi MARA Shah Alam, 40450, Shah Alam, Selangor, Malaysia
Hamidi, Z.S. Faculty of Applied Sciences, Universiti Teknologi MARA Shah Alam, 40450, Shah Alam, Selangor, Malaysia

DOI:

https://doi.org/10.7187/GJATSI062022-5

Keywords:

Impulsive CME, Solar flare, Type-II burst, Type-IV burst

Abstract

Our study focused on two types of solar radio bursts observed on November 29^th, 2020, at 12:54 UT and 12:56 UT, respectively. In addition to seeing the radio burst appear in the spectral dynamic spectrum, measurements of the burst's energy, frequency drift rates, and plasma frequency have been made. Prior to the type II burst, a flare of class M4.44 was detected by the GOES satellite and seen in x-ray flux data. AR 2790 generated the solar flare, but it was hidden behind the southeastern limb of the Sun, so the active region was not visible in the solar disk on November 29^th, 2020. As far as solar flare explosions go, this was the biggest in three years since October 20^th, 2017, from AR2685. Due to the proximity of these events, it is thought that the solar flare triggered a partial-halo CME at 13:25UT. From the CME’s velocity and flare association, we infer that it is an impulsive CME.

References

Andrews, M., & Howard, R. (2001). A two-type classification of Lasco coronal mass ejection. Space Science Reviews, 95(1), 147-163.

Boischot, A. (1957). Caractères d'un type d'émission hertzienne associé à certaines éruptions chromosphériques. Academie des Sciences Paris Comptes Rendus, 244, 1326-1329.

Cane, H., & Reames, D. (1988). Some statistics of solar radio bursts of spectral types II and IV. The Astrophysical Journal, 325, 901-904.

Cliver, E., White, S., & Balasubramaniam, K. (2011). The solar decimetric spike burst of 2006 December 6: Possible evidence for field-aligned potential drops in post-eruption loops. The Astrophysical Journal, 743(2), 145.

Duncan, R. (1981). Langmuir-wave conversion as the explanation of moving type IV solar meter-wave radio outbursts. Solar Physics, 73(1), 191-204.

Gopalswamy, N., Mäkelä, P., Xie, H., Akiyama, S., & Yashiro, S. (2009). CME interactions with coronal holes and their interplanetary consequences. Journal of Geophysical Research: Space Physics, 114(A3).

Gour, P. S., Singh, N. P., Soni, S., & Saini, S. M. (2021). Observation of coronal mass ejections in association with sun spot number and solar flares. Paper presented at the IOP Conference Series: Materials Science and Engineering.

Jaeggli, S. A., & Norton, A. A. (2016). The magnetic classification of solar active regions 1992–2015. The Astrophysical Journal Letters, 820(1), L11.

Kai, K. (1969). Observation of Strong Circular Polarization in a Moving Type IV Burst. Publications of the Astronomical Society of Australia, 1(5), 189-191.

Kumari, A., Morosan, D., & Kilpua, E. (2020). On the occurrence of type IV solar radio bursts in the solar cycle 24 and their association with coronal mass ejections. arXiv e-prints, arXiv: 2011.03509.

McLean, D. J., & Labrum, N. R. (1985). Solar radiophysics: Studies of emission from the sun at metre wavelengths. Solar Radiophysics: Studies of Emission from the Sun at Metre Wavelengths.

Melrose, D., & Dulk, G. A. (1982). Electron-cyclotron masers as the source of certain solar and stellar radio bursts. The Astrophysical Journal, 259, 844-858.

Moon, Y.-J., Choe, G., Wang, H., Park, Y., Gopalswamy, N., Yang, G., & Yashiro, S. (2002). A statistical study of two classes of coronal mass ejections. The Astrophysical Journal, 581(1), 694.

Morosan, D. E., Kilpua, E. K., Carley, E. P., & Monstein, C. (2019). Variable emission mechanism of a Type IV radio burst. Astronomy & Astrophysics, 623, A63.

Pick, M. (1986). Observations of radio continua and terminology. In Radio Continua During Solar Flares (pp. 19-32): Springer.

Sheeley Jr, N., Walters, J., Wang, Y. M., & Howard, R. (1999). Continuous tracking of coronal outflows: Two kinds of coronal mass ejections. Journal of Geophysical Research: Space Physics, 104(A11), 24739-24767.

Shibata, K. (1991). Theoretical models of solar flares. In Flare Physics in Solar Activity Maximum 22 (pp. 203-218): Springer.

Webb, D. F., & Howard, T. A. (2012). Coronal mass ejections: Observations. Living Reviews in Solar Physics, 9(1), 1-83.

Wild, J., Smerd, S., & Weiss, A. (1963). Solar bursts. Annual Review of Astronomy and Astrophysics, 1, 291.

Winter, L. M., & Ledbetter, K. (2015). Type II and type III radio bursts and their correlation with solar energetic proton events. The Astrophysical Journal, 809(1), 105.