Improvement of the inversion accuracy of the Ca II line profiles using response functions |
| |
| Authors: | R B Teplitskaya S A Grigoryeva |
| |
| Institution: | 1.Institute of Solar-Terrestrial Physics, Siberian Branch,Russian Academy of Sciences,Irkutsk,Russia |
| |
| Abstract: | The line profile inversion is as a rule used to model the atmosphere. The algorithm for determining the temperature and electron
density in the middle chromosphere has been developed based on inversion of the profiles of five Ca II chromospheric lines.
Necessary information is contained in the function called by us the population function. This function is used to calculate
the frequency-dependent source functions in lines and, consequently, the rates of radiative transitions. However, the accuracy
of population function reconstruction in the inversion procedure is insufficient for the goal to be achieved. The accuracy
is increased by using the intensity response function conception. The response functions of five Ca II lines to the population
function disturbances have been calculated. The accuracy to be achieved has been estimated using one of the semiempirical
models of the sunspot umbra as an example. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
