1992•Unpublished venueRequires access
Fluid motions in the solar atmosphere. III - A possible explanation of the downflows
Qing-Qi Cheng
Open publisher page 6 citations
Abstract
Widespread plasma downflows, which are observed from the Doppler shifts of C IV emission lines at about the temperature of T = 10 5 K in the solar chromosphere-corona transition region, may be the return material of spicules. A solar spicule is simulated numerically with a single quasi-impulsive wave and radiation, ionization, thermal conduction and mechanical heating are taking into account in the calculations. From the rise and fall of the spicular material it is shown that the observed downflow is a direct result of the spicular upflow. The velocities and other properties of downflows can be explained reasonably in this model