An analysis of interplanetary solar radio emissions associated with a coronal mass ejection

Abstract

Coronal mass ejections (CMEs) are large-scale eruptions of magnetized plasma that may cause severe geomagnetic storms if Earth-directed. Here we report a rare instance with comprehensive in situ and remote sensing observa- tions of a CME combining white-light, radio, and plasma measurements from four different vantage points. For the first time, we have successfully applied a radio direction-finding technique to an interplanetary type II burst detected by two identical widely separated radio receivers. The derived locations of the type II and type III bursts are in general agreement with the white light CME recon- struction. We find that the radio emission arises from the flanks of the CME, and are most likely associated with the CME-driven shock. Our work demon- strates the complementarity between radio triangulation and 3D reconstruction techniques for space weather applications.

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Cited by in corpus (9)

• Density Fluctuations in the Solar Wind Based on Type III Radio Bursts Observed by Parker Solar Probe
• Simulations of radio-wave anisotropic scattering to interpret type III radio bursts measurements by Solar Orbiter, Parker Solar Probe, STEREO and Wind
• Using radio triangulation to understand the origin of two subsequent type II radio bursts
• Multiple injections of energetic electrons associated with the flare/CME event on 9 October 2021
• Multipoint study of successive coronal mass ejections driving moderate disturbances at 1 AU
• Direct First PSP Observation of the Interaction of Two Successive Interplanetary Coronal Mass Ejections in November 2020
• Structured type III radio bursts observed in interplanetary space
• Interplanetary radio type II and type IV bursts as indicators of propagating solar transients
• Two-Part Interplanetary Type II Solar Radio Bursts