Nanoflares Heating of Solar Corona by Reconnection Model

Joshi, Vinod Kumar and Prasad, Lalan (2012) Nanoflares Heating of Solar Corona by Reconnection Model. Romanian Astronomical Journal, 22 (1). pp. 13-21. ISSN 2285-3758

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Abstract

A number of mechanisms have been proposed that predicts heating by discrete events of various energies. By taking the facts that when two oppositely directed magnetic fields come closer to form a current sheet (treated as diffusion region),the current density of plasma increases due to which magnetic reconnection and turbulence takes place. We investigate the energy range 1023 to 1026 ergs (called nanoflares), by steady state of magnetic reconnection. Here the magnetic energy convert in to the thermal energy and heating exist by the process of reconnection model. This process is also the principle source of heat for solar X-ray corona. We reported that the energy release in current sheet also matches with the observations of Yohkoh satellite. From Yohkoh X-ray observations the fluctuation in brightness is of the order of 1023 – 1026 ergs over times of 100 sec.

Item Type: Article
Uncontrolled Keywords: Sun, Solar corona, Magnetic reconnection, Coronal heating, Solar flares.
Subjects: Engineering > MIT Manipal > Electronics and Communication
Depositing User: MIT Library
Date Deposited: 15 Jan 2014 10:33
Last Modified: 15 Jan 2014 10:33
URI: http://eprints.manipal.edu/id/eprint/138364

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