We present narrowband H-alpha imaging and long-slit optical and near-infrared spectroscopy of the giant H II region NGC 2363. The spectroscopic data are taken...
Virgo cluster and field dwarf ellipticals in 3D - I. On the variety of stellar kinematic and line-strength properties
We present the first large-scale stellar kinematic and line-strength maps for dwarf elliptical galaxies (nine in the Virgo cluster and three in the field...
Virgo Cluster and field dwarf ellipticals in 3D - II. Internal dynamics points to tidal harassment?
We present the dynamical analysis of a sample of 12 dwarf elliptical (dE) galaxies for which we have obtained SAURON large-scale two-dimensional spectroscopic...
Virgo cluster and field dwarf ellipticals in 3D - III. Spatially and temporally resolved stellar populations
We present the stellar population analysis of a sample of 12 dwarf elliptical galaxies, observed with the SAURON integral field unit, using the full-spectrum...
Virgo's Intracluster Globular Clusters as Seen by the Advanced Camera for Surveys
We report the discovery of four candidate intracluster globular clusters (IGCs) in a single deep HST ACS field of the Virgo Cluster. We show that each cluster...
VIRGO: Experiment for Helioseismology and Solar Irradiance Monitoring
The scientific objective of the VIRGO experiment (Variability of solar IRradiance and Gravity Oscillations) is to determine the characteristics of pressure and...
A specific modification of Newtonian dynamics known as MOND has been shown to reproduce the dynamics of most astrophysical systems at different scales without...
Visible and infrared blazar monitoring in the Canary Islands - 1986-1998
A programme of visible multi-colour monitoring of blazars was started in the Canary Islands in 1986. Infrared monitoring was added to the programme in 1988. The...