This work describes an elearning sequence for teaching geometry and astronomy in lower secondary school created inside the ITEMS (Improving Teacher Education in Mathematics and Science) project. It is based on results from the astronomy education research about studentsŠ difficulties in understanding elementary astronomical observations and models

The underlying ethos of Open Access is that the public should have the right to free access to the published results of all publicly funded academic and scientific research. Such has been the political success of OA campaigners that some funding agencies (e.g. Wellcome) now make OA publication of funded research a necessary condition for the award

We analyse the internal dynamics of star-forming H ii regions and their efficiency in interacting with the ISM. We have selected the nearby (4.5 Mpc) spiral galaxy M 83, and from GHαFaS Fabry-Perot observations of the central 3.4' × 3.4' region, extracted the integrated Hα emission-line profiles of a sample of 136 isolated H ii regions. We

Context. Transit search programs such as CoRoT and Kepler now have the capability of detecting planets as small as the Earth. The detection of these planets however requires the removal of all false positives. Although many false positives can be identified by a detailed analysis of the light-curves (LCs), the detections of others require

We present high spatial resolution SEDs, on the scales of a few tens of parsec, of some of the nearest and most well known, radio-quiet AGN. The new SEDs are found to largely depart, in shape and bolometric luminosity, from those compiled from large aperture IR satellite data. Type 1 and 2 radio quiet AGN can clearly be identified by the overall

We present ground-based optical observations of the 2009 September and 2010 January transits of HD 80606b. Based on three partial light curves of the 2009 September event, we derive a midtransit time of Tc [HJD] = 2455099.196 ± 0.026, which is about 1σ away from the previously predicted time. We observed the 2010 January event from nine different