On the Stellar Content of the Starburst Galaxy IC10
We investigate the stellar content of the starburst dwarf galaxy IC10 using accurate and deep optical data collected with the Advanced Camera for Surveys and...
On the Stokes V Amplitude Ratio as an Indicator of the Field Strength in the Solar Internetwork
The results of the determination of magnetic field strength from weak polarimetric signals in solar internetwork regions are contradictory. We investigate the...
On the Storage of Magnetic Flux Tubes at the Base of the Solar Convection Zone
The study of the storage of toroidal flux tubes at the base of the convection zone is of interest in connection with the operation of a solar αΩ-type dynamo...
Two-dimensional high spatial resoultion Fabry-Perot observations with TAURUS 2 at the William Herschel Telescope in La Palma, over the inner central regions of...
On the temperature and velocity through the photosphere of a sunspot penumbra
We investigate the structure in depth of a sunspot penumbra by means of the inversion code of the radiative transfer equation proposed by Ruiz Cobo & del Toro...
On the theory of MAG waves and a comparison with sunspot observations from CDS/SoHO
We examine the influence of non-adiabatic effects on the modes of an isothermal stratified magnetic atmosphere. We present new solutions for magneto-acoustic...
On the Triple Nature of the Cataclysmic Variable VY Sculptoris
The study of the Balmer radial velocity curve of the cataclysmic variable (CV) VY Scl has revealed a new value for the orbital period (0.232 days), which...
On the triple-star origin of the planetary nebula Sh 2-71
Recent studies have indicated that triple-star systems may play a role in the formation of an appreciable number of planetary nebulae, however, only one triple...
On the ultra-compact nature of the neutron star system 1RXS J170854.4-321857: insights from X-ray spectroscopy
The relatively small family of ultra-compact X-ray binary systems is of great interest for many areas of astrophysics. We report on a detailed X-ray spectral...