Two groups of microwave type U and RS bursts on 15 February 2011

Author

Yu Xue ; Shu Juan Wang ; Yi Hua Yan

Author_Institution

Key Lab. of Solar Activity, Nat. Astron. Obs., Beijing, China

fYear

2014

fDate

16-23 Aug. 2014

Firstpage

1

Lastpage

4

Abstract

Two groups of microwave type U and reverse-slope (RS) bursts after the soft X-ray (SXR) maximum were observed with the 2.6-3.8 GHz spectrometer of Chinese Solar Broadband Radio Spectrometers (SBRS/Huairou) on 15 February 2011. On that day, an X2.2 solar flare occurred in the active region (AR) NOAA 11158. We utilized a shear-driven quadrupolar reconnection (SQR) model to analyze the observed type U and RS bursts and found that the two loops involved are basically in the same spatial scale and have a height difference of about 1300 km. We interpreted these bursts to be a result of a new reconnection process between the two loops.

Keywords

magnetic reconnection; solar flares; solar radiofrequency radiation; AR NOAA 11158; Chinese Solar Broadband Radio Spectrometers; RS bursts; SBRS/Huairou; SQR model; SXR; X2.2 solar flare; active region; frequency 2.6 GHz to 3.8 GHz; microwave type U bursts; reverse-slope bursts; shear-driven quadrupolar reconnection model; soft X-ray maximum; Analytical models; Broadband communication; Electron beams; Magnetic flux; Magnetic reconnection; US Government agencies;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI

Conference_Location

Beijing

Type

conf

DOI

10.1109/URSIGASS.2014.6930046

Filename

6930046