Study of the spatial association between an active region jet and a nonthermal type III radio burst

Mulay, Sargam M., Rohit Sharma, Gherardo Valori, Alberto M. Vásquez, Giulio Del Zanna, Helen Mason, and Divya Oberoi, Study of the spatial association between an active region jet and a nonthermal type III radio burst, A&A, 632, A108 (2019) (ADS)

The cartoon

(click on the image for a larger version)

How do the non-thermal electron streams responsible for radio type III "fast drift" bursts actually link the lower atmosphere and the heliosphere? For that matter, how do any SEPs particles "escape" from the warm embrace of the parental coronal magnetic field? This cartoon explains the connectivity by associating the particle acceleration with magnetic reconnection at a null quasi-separatrix layer in a quadrupolar magnetic configuration. The paper supports this picture via a very nice mixture of spectroscopy, radio astronomy, and mathematics. Note that the reconnection cannot be identified with what is normally called flare reconnection, which would form the green loops to the left of the jet here.

Date: 2020 October 16