Scaling-law equilibria for calcium in canopy-type models of the solar chromosphere |
| |
Authors: | Harrison P Jones |
| |
Institution: | (1) NASA/Goddard Space Flight Center, Laboratory for Astronomy and Solar Physics, Southwest Solar Station, Kitt Peak National Observatory, P.O. Box 26732, 85726 Tucson, AZ, U.S.A. |
| |
Abstract: | Scaling laws for resonance line formation are used to obtain approximate excitation and ionization equilibria for a three-level model of singly ionized calcium. The method has been developed for and is applied to the study of magnetograph response in the 8542 Å infrared triplet line to magnetostatic canopies which schematically model diffuse, nearly horizontal fields in the low solar chromosphere. For this application, the method is shown to be efficient and semi-quantitative, and the results indicate the type and range of effects on calcium-line radiation which result from reduced gas pressure inside the magnetic regions.Operated by the Association of Universities for Research in Astronomy, Inc., under contract with the National Science Foundation. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|