Browsing by Author "Kneer, F"

Now showing items 1-4 of 4

Spectral line radiation from solar small-scale flux tubes. II

Hasan, S. S; Kneer, F; Kalkofen, W (European Southern Observatory, 1998-04)

We examine spectral line radiation from small-scale magnetic flux tubes in the solar atmosphere. This is a continuation of work by Kneer et al. (1996). The main difference with the previous investigation is in the choice ...
Spectral line radiation from solar small-scale magnetic flux tubes

Kneer, F; Hasan, S. S; Kalkofen, W (European Southern Observatory, 1996-01)

We consider spectral line radiation from small-scale magnetic model flux tubes in the solar atmosphere. The structure of the tube is determined from the magnetostatic equations in the thin flux tube approximation. We assume ...
Stability of cool flux tubes in the solar chromosphere Linear analysis

Hasan, S. S; Kneer, F (EDP Sciences, 1986-04)

The linear stability of cool flux tubes in the solar chromosphere which are initially in radiative equilibrium is examined. Owing to the presence of carbon monoxide, there exists a narrow region near the temperature minimum ...
Stability of cool flux tubes in the solar chromosphere. II - Non-linear dynamical behaviour

Hasan, S. S; Kneer, F (The European Southern Observatory, 1990-06)

A single vertical cool flux tube in the solar chromosphere is focused upon for stability studies. The analysis of a previous study by Hasan and Kneer (1986) is extended to the nonlinear regime with a view to examining the ...

Search DSpace