We present a detailed study on the kinematics of metal-rich stars with and without planets, and their relation with the Hyades, Sirius and Hercules dynamical streams in the solar neighbourhood. We compare the kinematic behaviour of known planet-host stars to the remaining targets belonging to the CORALIE volume-limited sample, in particular to its

Not Available

Recent results suggest that there is a group of trans-Neptunian objects (TNOs), 2003 EL61 being the biggest member, with similar dynamical and physical characteristics (Brown et al. 2007, Pinilla-Alonso et al. 2007). All these objects are concentrated in a narrow region of the orbital parameters space (41.6 a 43.6 AU, 25.8 i 28.2 deg, 0.10 e

The Isaac Newton Telescope H-alpha survey (IPHAS) of the northern galactic plane is near completion. The photometric (H-alpha, R, I) catalogue and the mosaic images database have been searched for new Planetary Nebulae. We present the results for the RA=18 to 20 hr region, the first analyzed so far. More than 250 PNe candidates are discovered

The COROT space mission will monitor several target fields for up to 150 days to perform asteroseismology and to search for extrasolar planets by photometric transits. Variable stars in the target fields are important objects for additional scientific studies but can also disturb the search for planetary transits. A variability characterization of

Context: Previous studies have indicated that the 372.4 GHz ground transition of ortho-H2D+ might be a powerful probe of Proto-Planetary Disks. The line could be especially suited for study of the disk mid-plane, where the bulk of the mass resides and where planet formation takes place. Aims: Provide detailed theoretical predictions for the line