On the nature of the prototype LBV AG Carinae I. Fundamental parameters during visual minimum phases and changes in the bolometric luminosity during the S-Dor cycle
On the nature of the prototype LBV AG Carinae II. Witnessing a massive star evolving close to the Eddington and bistability limits
On the Nature of the Purported Common Proper Motion Companions to the Exoplanet Host Star 51 Peg
On the Need for Deep Mixing in AGB Stars of Low Mass
On the observability of T Tauri accretion shocks in the X-ray band
On the occurrence and detectability of Bose-Einstein condensation in helium white dwarfs
On the onset of runaway stellar collisions in dense star clusters - II. Hydrodynamics of three-body interactions
On the Orbit of Visual Binary ADS 8119 AB (α = 11h18m10s.9 and δ=+31o31'44".9)
On the Orbit of Visual Binary WDS 01158-6853 I-27CD (SAO248342)
On the Orbital Period Change in the Recurrent Nova U Scorpii
On the origin of high-velocity runaway stars
On the origin of intergranular jets
On the origin of reverse polarity patches found by Hinode in sunspot penumbrae
On the Origin of Stellar Masses
On the origin of the 1/f spectrum in the solar wind magnetic field
On the origin of the hypervelocity runaway star HD271791
On the Origin of the Slow Speed Solar Wind: Helium Abundance Variations
On the origin of the Type~{\sc ii} spicules - dynamic 3D MHD simulations
On the origin of tilted disks and negative superhumps
On the origin of [NeII] 12.81 micron emission from pre-main sequence stars: Disks, jets, and accretion