A measurement of the I = I solar rotational splitting
A precise measurement of the l = 1 rotational splitting has been derived from the 1991 IRIS data and it leads to a moderate rotation rate in the solar core.
A meta-analysis of the magnetic line broadening in the solar atmosphere
A multiline Bayesian analysis of the Zeeman broadening in the solar atmosphere is presented. A hierarchical probabilistic model, based on the simple but...
A method to deconvolve stellar profiles. The non-rotating line utilizing Gaussian sum approximation
Context. Currently, one of the standard procedures used to determine stellar and wind parameters of massive stars involves to comparing the observed spectral...
A method to detect p-mode oscillations in solar-like star signals
A good example of finding a signal buried in noise, a common problem in Astrophysics, is the search for stellar oscillations in the acoustic power spectrum of...
A mid-infrared study of H II regions in the Magellanic Clouds: N88 A and N160 A
Aims: To show the importance of high-spatial resolution observations of H II regions when compared with observations obtained with larger apertures such as ISO...
A mid-infrared study of very low mass stars and brown dwarfs in Upper Scorpius
Context: To investigate the formation of sub-stellar objects, we observed a sample of ultracool dwarf members of the Upper Scorpius OB association. Aims: The...
A minor merger origin for stellar inner discs and rings in spiral galaxies
Context. Observations have shown that inner discs and rings (IDs and IRs) are not preferably found in barred galaxies, which indicates that their formation may...
A model for constructing artificial integrated spectral lines and their Fourier transform properties relevant to the search for differential rotation of stars
A model is given for constructing artificial integrated spectral lines which allows the inclusion of all effects relevant to the synthesis of these lines by...
A modified Milne-Eddington approximation for a qualitative interpretation of chromospheric spectral lines
Context. The Milne-Eddington approximation provides an analytic and simple solution to the radiative transfer equation. It can be easily implemented in...