The effects of partial redistribution on facular K line profiles |
| |
| Authors: | J N Heasley F Kneer G A Chapman |
| |
| Institution: | (1) Kitt Peak National Observatory, Tucson, Ariz., USA;(2) Fraunhofer Institute, Freiburg im Breisgau, F.R.G.;(3) Space Sciences Laboratory, The Aerospace Corporation, USA |
| |
| Abstract: | We present theoretical Ca ii K-line profiles and filtergram contrasts for several recent models of solar faculae. The line profiles vary greatly between models and between complete and partial frequency redistribution non-LTE calculations for any given model. The filtergram contrasts are relatively insensitive to the line formation theory which greatly simplifies the calculation for comparison with observations. All of the models considered exhibit K-line contrasts smaller than the mean value observed by Mehltretter.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！ |
|
