Various aspects of the magnetism of the quiet sun are reviewed. The suggestion that a small scale dynamo acting at granular scales generates what we call the...
Solar-like oscillations in Kepler red giants (Hekker+, 2011)
For this investigation we use Kepler data obtained during the first four months of operation. These data have been analysed by different groups using already...
Some Constraints on Chromospheric Modelling for Solar-Type Stars with High S/n Spectra
High signal to noise spectra are required in chromospheric modelling because chromospheric emission lines are formed in a boundary layer under conditions of...
Some Iterative Methods for Radiative Transfer Problems
In the mathematical computation of many physical problems we have to work with the numerical solution of non-linear problems. Even in case that a direct...
Some problems in using molecular abundance ratios for fundamental abundance determinations
The derivation of electron abundances in dense clouds of interstellar gas and related problems are briefly discussed. Charge transfer at low energies is briefly...
Some problems in using molecular abundance ratios for fundamental abundance determinations.
Contents: The classical scheme for gas phase reactions. Charge transfer at low energies. Electron abundances in dense clouds. Some problems in interstellar S...
Some recent progress on identifying and modelling a relationship between the GCR flux and climate
A relationship is identified between the largest (top 5%) most rapid global increases in ISCCP retrieved IR cloud cover and statistically significant increases...
Some simple physical facts about the collapse of the Twin Towers
An analysis of the collapse of the Twin Towers is carried on with the aid of simple mechanical laws. The motion of the collapse front is calculated in terms of...