Context. Understanding the formation of collimated outflows is one of the most debated and controversial topics in the study of the late stages of stellar evolution. Aims: M 2-9 is an outstanding representative of extreme aspherical flows. It presents unique features such as a pair of high-velocity dusty polar blobs and a mirror-symmetric rotating

We present the ellipticity distribution and its evolution for early-type galaxies in clusters from z˜ 0.8 to the current epoch, based on the WIde-field Nearby Galaxy-cluster Survey (0.04 ≤z≤ 0.07) and the ESO Distant Cluster Survey (0.4 ≤z≤ 0.8). We first investigate a mass-limited sample and we find that above a fixed mass limit (M*≥ 1010.2 M&sun

We present the first targeted survey for Extremely Low Mass (ELM) white dwarfs (WDs), helium core WDs with masses

CBET 2727 available at Central Bureau for Astronomical Telegrams.

CBET 2727 available at Central Bureau for Astronomical Telegrams.

Aims: We wish to determine the influence of bars on the building of galaxy bulges through analysis of ages and metallicities derived from stellar absorption line-strength indices. Methods: Long-slit spectroscopy was obtained for a sample of 20 early-type barred galaxies. Line-strength indices were measured and used to derive age and metallicity