Evidence of in-situ Type II radio bursts in interplanetary shocks

Autor:	J. C. Martinez Oliveros, B. Calvo-Mozo, S. M. Díaz-Castillo
Rok vydání:	2016
Předmět:	Shock wave In situ Physics Space and Planetary Science Coronal mass ejection Astronomy and Astrophysics Astrophysics Interplanetary spaceflight Intensity (physics) Shock (mechanics)
Zdroj:	Proceedings of the International Astronomical Union. 12:134-139
ISSN:	1743-9221 1743-9213
DOI:	10.1017/s1743921317004008
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e324883797407e7b48605ab3cd2a6258 https://doi.org/10.1017/s1743921317004008 Zobrazit plný text záznamu Plný text ve formátu PDF