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Energetics of small electron acceleration episodes in the solar corona from radio noise storm observations View all abstracts by submitter

Prasad Subramanian   Submitted: 2018-05-21 23:23

Observations of radio noise storms can act as sensitive probes of nonthermal electrons produced in small acceleration events in the solar corona. We use data from noise storm episodes observed jointly by the Giant Metrewave Radio Telescope (GMRT) and the Nançay Radioheliograph (NRH) to study characteristics of the nonthermal electrons involved in the emission. We find that the electrons carry 1021 to 1024 erg/s, and that the energy contained in the electrons producing a representative noise storm burst ranges from 1020 to 1023 ergs. These results are a direct probe of the energetics involved in ubiquitous, small-scale electron acceleration episodes in the corona, and could be relevant to a nanoflare-like scenario for coronal heating.

Authors: Tomin James, Prasad Subramanian
Projects: None

Publication Status: To appear in the Monthly Notices of the Royal Astronomical Society
Last Modified: 2018-05-23 11:07
Go to main E-Print page  Solar coronal loop dynamics near the null point above active region NOAA 2666  The origin of the modulation of the radio emission from the solar corona by a fast magnetoacoustic wave  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

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