Solar flare dynamics obtained by X-ray observations
Abstract:The dynamic properties of solar flares are considered on the basis of the spectral observations of soft X-rays of more than 180 flares obtained during the last two decades. The random non-thermal velocities are in the range from 60 to 580 km s−1 but mainly change from 110 to 190 km s−1. The mean value of the calculated for flares being mainly of C1-M5 X-ray classes are equal to 160.8 ± 4.7 km s−1. The directed velocities in flares are from several dozen to several hundred kilometres per second. The relationships between and other flare characteristics are discussed. Investigations of flare dynamics help us to understand the nature of energy transport in them.
Document Type: Research Article
Publication date: 2003-08-01