Theoretical Line Profiles for Hydrogen and Calcium under Chromospheric Conditions
Abstract
Recent high resolution Ha photographs by Bray and Loughhead (unpublished) have confirmed that much of the chromosphere is quite non-uniform. Rather, it appears to consist of many distinct structures, which have a typical transverse section of several seconds of arc, i.e. about 2000 km. The aim of the research reported in this contribution is to attempt to analyse the non-uniform chromosphere by first investigating a single structure. A simple model of a structure was chosen. From the model, line profiles of Hα and the H and K lines of Can were computed assuming a variety of physical conditions to exist in the feature.
- Publication:
-
Publications of the Astronomical Society of Australia
- Pub Date:
- November 1967
- DOI:
- 10.1017/S1323358000010493
- Bibcode:
- 1967PASA....1...52B