The European Near Earth Asteroids Research (EURONEAR) is a project which envisions to establish a coordinated network to follow-up, recover and discover Near Earth Asteroids (NEAs), Potentialy Hazardous Asteroids (PHAs) and Virtual Impactors (VIs). Within this network, more than 100 objects have been observed during the first two years using 1m

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Lenorzer et al. introduce ratios of hydrogen infrared recombination lines as a diagnostic tool to constrain the spatial distribution and physical condition of circumstellar material around hot massive stars. They demonstrate that the observed line flux ratios Hu14/Brα and Hu14/Pfγ from different types of objects associated with circumstellar

We have employed a reliable technique of classification of active galactic nuclei (AGNs) based on the fit of well sampled spectral energy distributions (SEDs) with a complete set of AGN and starburst galaxy templates. We have compiled UV, optical, and IR data for a sample of 116 AGNs originally selected for their X-ray and mid-IR emissions (96 with

Studies of black holes are at a threshold. There is compelling evidence for the existence of both stellar-mass and supermassive black holes, and research is now focused on determining their properties and environmental effects. Most importantly, we are starting to realize the long-held promise of black holes as the ultimate laboratories for

Aims: The amplitude and scaleheight of the Galactic gas disc density are not axisymmetric against expectations in a self-gravity axisymmetric disc. However, this lopsidedness can be explained in terms of intergalactic accretion flows, which produce non-axisymmetric pressure on the disc. This mechanism could be also responsible for the formation of