We investigate the possibility of measuring magnetic field strength in G-band bright points through the analysis of Zeeman polarization in molecular CH lines...
The Zigzag Path of Buoyant Magnetic Tubes and the Generation of Vorticity along Their Periphery
We study the generation of vorticity in the magnetic boundary layer of buoyant magnetic tubes and its consequences for the trajectory of magnetic structures...
We study the behaviour of the interstellar R_n_=n(Zn^+^)/n(Na^0^) ratio in ionization equilibrium conditions. The ratio is very sensitive to variations of the...
The [CII] 158 μm emission line as a gas mass tracer in high redshift quiescent galaxies
A great deal of effort has been made in recent years to probe the gas fraction evolution of massive quiescent galaxies (QGs); however, a clear picture has not...
We have measured the ^12^C/^13^C interstellar ratio in the Coalsack, a prominent dark nebula in the southern sky, by means of high resolution (λ/δλ=6x10^4^)...
The γ Doradus CoRoT target HD 49434. I. Results from the ground-based campaign
Context: We present an extensive ground-based photometric and spectroscopic campaign of the γ Dor CoRoT target HD 49434. This campaign was a preparatory step of...
The γ Doradus CoRoT target HD 49434. II. Frequency analysis of the CoRoT data
Context. HD 49434 is a bright (V = 5.75 m) and multiperiodic γ Dor-type pulsator that has been selected for the asteroseismic core programme of the CoRoT...
The δ Scuti pulsations of β Pictoris as observed by ASTEP from Antarctica
Aims: The Antarctica Search for Transiting Extrasolar Planets (ASTEP), an automatized 400 mm telescope located at Concordia station in Antarctica, monitored β...
The ‘Almogaren’ of Risco Caído: a singular astronomical sanctuary of the ancient Canarians
The almogaren (rock-cut sanctuary) of Risco Caído was discovered in 1996 in the Canary island of Gran Canaria. It is a paradigmatic example of a complex where...