The Nuclear Outflows and Feedback in the Seyfert 2 Galaxy Markarian 573
The Nuclear Ring in the Barred Spiral Galaxy IC 4933
The nuclear star cluster of the Milky Way: proper motions and mass
The nuclear X-ray emission of nearby early-type galaxies
The observable prestellar phase of the IMF
The OGLE View of Microlensing towards the Magellanic Clouds. I. A Trickle of Events in the OGLE-II LMC data
The OGLE View of Microlensing towards the Magellanic Clouds. II. OGLE-II SMC data
The OGLE View of Microlensing towards the Magellanic Clouds. III. Ruling out sub-solar MACHOs with the OGLE-III LMC data
The OGLE View of Microlensing towards the Magellanic Clouds. IV. OGLE-III SMC Data and Final Conclusions on MACHOs
The OH Masers Towards IRAS 19092+0841
The onset of warps in Spitzer observations of edge-on spiral galaxies
The open cluster Berkeley 53
The optical counterpart to IGR J06074+2205: a Be/X-ray binary showing disc loss and V/R variability
The optical emission nebulae in the vicinity of WR 48 (Theta Mus); True Wolf-Rayet ejecta or unconnected supernova remnant?
The Optical Gravitational Lensing Experiment. The Catalog of Stellar Proper Motions toward the Magellanic Clouds
The Optical Gravitational Lensing Experiment: Analysis of the bulge RR Lyrae population from the OGLE-III data
The optical microvariability and spectral changes of the BL Lacertae object S5 0716+714
The optical structure of the starburst galaxy M82 - I: Dynamics of the disk and inner-wind
The OPTX Project IV: How Reliable is [OIII] as a Measure of AGN Activity?
The Orbit of the Orphan Stream