Evidence of in-situ Type II radio bursts in interplanetary shocks. Issue Volume 12:Issue S327(2016) (12th September 2017)

• Record Type: Journal Article
• Authors: Díaz-Castillo, S. M.; Oliveros, J. C. Martínez; Calvo-Mozo, B.
• Editors: Vargas Domínguez, S.; Kosovichev, A.G.; Antolin, P.; Harra, L.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 12:Issue S327(2016)
• Page Start: 134
• Page End: 139
• Publication Date: 2017-09-12
• Subjects: coronal mass ejections (CMEs), -- shock waves, -- solar radio emission; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921317004008
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: We present a database of 11 interplanetary shocks associated to coronal mass ejections (CMEs) observed by STEREO and Wind missions between 2006 and 2011 that show evidence of Type II radio burst. For all events, we calculated the principal characteristics of the shock driver, the intensity and geometrical configuration of the in-situ shock and checked for the existence of in-situ type II radio burst. We made a comparative analysis of two CME events (on 18 August 2010 and 4 June 2011), which are apparently associated to two or more magnetic structures which interact in space (i.e. CMEs, SIRs, CIRs). These events show varied shock configurations and intensities. We found evidence of in-situ type II radio bursts in one of the events studied, suggesting that the geometry of the shock (quasi-perpendicularity) is also critical for the generation and/or detection of radio emission in-situ.