Results of photometric surveys have brought to light the existence of a population of giant planets orbiting their host stars even closer than the hot Jupiters...
On the alumina dust production in the winds of O-rich asymptotic giant branch stars
The O-rich asymptotic giant branch (AGB) stars experience strong mass-loss with efficient dust condensation and they are major sources of dust in the...
On the Anomalous Red Giant Branch of the Globular Cluster ω Centauri
We present three different optical and near-infrared (NIR) data sets for evolved stars in the Galactic globular cluster ω Centauri. The comparison between...
On the Anticorrelation Between Galaxy Light Concentration and X-ray-to-Optical Flux Ratio
Active galactic nuclei (AGNs) play an important role in many aspects of modern cosmology, and of particular interest is the issue of the interplay between AGNs...
On the anticorrelation between pericentric distance and inner dark matter density of Milky Way's dwarf spheroidal galaxies
An anticorrelation between the central density of the dark matter (DM) halo (ρ 150, DM) and the pericentric distances (r p) of the Milky Way's (MW's) dwarf...
On the application of iteration factors for temperature correction in stellar atmospheres
The authors present an improved iterative method for deriving temperature corrections in stellar atmospheres. At each step of iteration, the procedure computes...
On the application of the spherical infall model to real (anisotropic and/or non-isolated) mass concentrations
We have studied analytically the mean pull on shells of real (anisotropic and/or non-isolated) mass concentrations. Using a non-linear scheme, the radial...
On the Atomic Polarization of the Ground Level of Na I
In a recent Letter, we showed the remarkable result that the atomic alignment of the levels P1/2 and S1/2 of the D1 line of Na I is practically destroyed in the...