The Induced Electric Field Distribution in Solar Atmosphere

TL;DR

This paper presents a method to calculate the induced electric field in the solar atmosphere using magnetic field extrapolation and observational data, revealing significant electric field values at specific atmospheric layers.

Contribution

It introduces a novel approach combining magnetic field extrapolation and observational data to compute the induced electric field in the solar atmosphere.

Findings

Induced electric field can reach up to 100 V/cm.

Maximum average electric field occurs at 360 km above the photosphere.

Monte Carlo method effectively computes the electric field integration.

Abstract

A method of calculating induced electric field is presented in this paper. Induced electric field in solar atmosphere is derived by the time variation of magnetic field when the charged particle accumulation is neglected. In order to get the spatial distribution of magnetic field, several extrapolation methods are introduced. With observational data from Helioseismic and Magnetic Imager (HMI) aboard the NASA's Solar Dynamics Observatory (SDO) on May 20th, 2010, we extrapolate the magnetic field to the upper atmosphere from the photosphere. By calculating the time variation of magnetic field, we can get the induced electric field. The derived induced electric field can reach a value of 100 V/cm and the average electric field has a maximum point at the layer of 360 km above the photosphere. The Monte Carlo statistics method is used to compute the triple integration of induced electric field.