File table1.dat contains the identification number, the coordinates (2000), the [OIII]5007 and the Hα+[NII] flux of the candidate PNe detected in Messier 81, using the Isaac Newton Telescope (INT) (La Palma, Spain) in 2000, December and 2001, January. The accuracy on position is approximately 0.5 arcsec. (1 data file).

We present recent developments of the CAOS "system", an IDL-based Problem Solving Environment (PSE) whose original aim was to define and simulate as realistically as possible the behavior of a generic adaptive optics (AO) system, from the atmospheric propagation of light, to the sensing of the wave-front aberratoins and the correction through a

We have measured C II and O II recombination lines in several H II regions of low-metallicity dwarf galaxies. These objects show lower C/O ratios than H II regions in spiral galaxies, indicating different chemical evolution histories.

Recently, it has been showed that (136108) 2003 EL61 and its biggest satellite S/2005 (136108) 1,(55636) 2002 TX300, (13308) 1996 TO66 , OP32, 1995 SM55 and 2005 RR43 are part of a population trans-netunian objects (TNOs) clustered in the space of orbital parameters (41.6

CARMENES, Calar Alto high-Resolution search for M dwarfs with Exo-earths with a Near-infrared Echelle Spectrograph, is a study for a next-generation instrument for the 3.5 m Calar Alto Telescope to be designed, built, integrated, and operated by a consortium of nine German and Spanish institutions. Our main objective is finding habitable exoplanets

A catalogue of light curve solutions of contact binary stars has been compiled. It contains the results of 159 light curve solutions. Properties of contact binary stars were studied by using the catalogue data. As it is well known since Lucy's (1968ApJ...151.1123L, 1968ApJ...153..877L) and Mochnacki's (1981ApJ...245..650M) works, primary components