Various fundamental-physics experiments such as measurement of the magnetic
birefringence of the vacuum, searches for ultralight dark-matter particles (eg, axions), and …

Context. Least-squares deconvolution (LSD) is a powerful method of extracting high-
precision average line profiles from the stellar intensity and polarization spectra. This …

Context. Modern spectroscopy of early-type stars often aims at studying complex physical
phenomena such as stellar pulsation, the peculiarity of the composition of the photosphere …

Binary neutron star (NS) mergers have been expected to synthesize r-process elements and
emit radioactively powered radiation, called kilonovae. Although r-process nucleosynthesis …

The nebular phase of lanthanide-rich ejecta of a neutron star merger (NSM) is studied by
using a one-zone model, in which the atomic properties a represented by a single species …

Context. We describe the atomic and molecular data that were used for the abundance
analyses of FGK-type stars carried out within the Gaia-ESO Public Spectroscopic Survey in …

Context. Full-disk solar flux spectra can be directly compared to stellar spectra and thereby
serve as our most important reference source for, for example stellar chemical abundances …

Context. The late-B, magnetic, chemically peculiar star CU Vir is one of the fastest rotators
among the intermediate-mass stars with strong fossil magnetic fields. It shows a prominent …

Modern investigations of magnetic chemically peculiar stars reveal a variety of complex
processes in their atmospheres. Realistic spectrum synthesis modelling of these objects has …

Aims. The determination of effective temperature for chemically peculiar (CP) stars by means
of photometry is a sophisticated task due to their abnormal colours. Standard calibrations for …