Aims:Our objective is to elucidate the physical process that causes the observed observed-minus-calculated (O-C) behavior in the M4.5/M4.5 binary CM Dra and to test for any evidence of a third body around the CM Dra system. Methods: New eclipse minimum timings of CM Dra were obtained between the years 2000 and 2007. The O-C times of the system are

Planetary nebulae (PNe) are ideal probes of dust formation and evolution in low- and intermediate- mass stars. The analysis of dust emission in the 5 to 40 micron range, however, has concentrated mainly on a relatively small number of nearby Galactic PNe. The analysis has been recently extended to fainter sources located in the direction of the

R Coronae Borealis stars (RCBs) provide an unique circumstellar environment that is hydrogen-deficient, helium-rich and carbon-rich in which dust condensation occurs. Litle is known about how and where the dust condensation process, compositions of the dust, and the trigger for dust formation. The hydrogen-poor carbon-rich and metal-poor (in some

The local galaxy Science Advisory Group (SAG 2) in the Herschel/SPIRE consortium, has constructed a Guaranteed Time Key Program using the PACS and SPIRE insruments to obtain 60 to 550 micron photometry of a statistically significant sample of 51 dwarf galaxies in our local universe chosen to cover an impressivly broad range of physical conditions

We present European Southern Observatory Very Large Telescope (ESO VLT) and William Herschel Telescope (WHT) spectroscopic observations of two powerful radio galaxies at intermediate redshifts (3C 213.1 and 3C 459), obtained with the aim of establishing the nature and evolutionary status of the host galaxies. Spectral synthesis modelling has been

The CCD images were obtained using the 1.54-m Danish telescope at the European Southern Observatory (ESO) on La Silla, equipped with the Danish Faint Object Spectrograph and Camera (DFOSC) on 4-5 Nov and 29 Dec 1999. Observations were secured in the Washington C and Kron-Cousins R filters. (5 data files).