First Radio Evidence for Impulsive Heating Contribution to the Quiet Solar Corona
This Letter explores the relevance of nanoflare-based models for heating the quiet Sun corona. Using meterwave data from the Murchison Widefield Array, we present the first successful detection of impulsive emissions down to flux densities of \~mSFU, about two orders of magnitude weaker than earlier attempts. These impulsive emissions have durations ≲1 s and are present throughout the quiet solar corona. The fractional time occupancy of these impulsive emissions at a given region is ≲10\%. The histograms of these impu ...
Mondal, Surajit; Oberoi, Divya; Mohan, Atul;
Published by: The Astrophysical Journal Published on: 06/2020
YEAR: 2020   DOI: 10.3847/2041-8213/ab8817
Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Quiet solar corona; Solar corona; Solar coronal heating; Solar coronal radio emission; Solar Probe Plus