We present an estimate of the solar rotation rate near the surface (i.e., the outer 1%) based on rotational splittings estimated for high degree modes ( ) from...
Solar site testing for the Advanced Technology Solar Telescope
The location of the Advanced Technology Solar Telescope (ATST) is a critical factor in the overall performance of the telescope. We have developed a set of...
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...