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Study of the spatial association between an active region jet and a nonthermal type~${\rm III}$ radio burst by Mulay, Sargam M.; Sharma, Rohit; Valori, Gherardo; Vásquez, Alberto M.; Del Zanna, Giulio; Mason, Helen; Oberoi, Divya is a scholarly article available to read on EtoBox.

What is Study of the spatial association between an active region jet and a nonthermal type~${\rm III}$ radio burst about?

We aim to investigate the spatial location of the source of an active region (AR) jet and its relation with associated nonthermal type~III radio emission. An emission measure (EM) method was used to study the thermodynamic nature of the AR jet. The nonthermal type~{\rm III} radio burst observed at meterwavelength was studied using the Murchison Widefield Array (MWA) radio imaging and spectroscopic data. The local configuration of the magnetic field and the connectivity of the source region of the jet with open magnetic field structures was studied using a nonlinear force-free field (NLFFF) extrapolation and potential field source surface (PFSS) extrapolation respectively. The plane-of-sky velocity of the AR jet was found to be $\sim$136~km/s. The EM analysis confirmed the presence of low temperature 2~MK plasma for the spire, whereas hot plasma, between 5-8 MK, was present at the footpoint region which also showed the presence of Fe~{\sc xviii} emission. A lower limit on the electron number density was found to be 1.4$\times$10$^{8}$ cm$^{-3}$ for the spire and 2.2$\times$10$^{8}$~cm$^{-3}$ for the footpoint. A temporal and spatial correlation between the AR jet and nonthermal type

Author

Mulay, Sargam M.; Sharma, Rohit; Valori, Gherardo; Vásquez, Alberto M.; Del Zanna, Giulio; Mason, Helen; Oberoi, Divya

Published

2020

Language

EN