Red-channel (6000−8000 Å) nuclear spectra of 376 local galaxies

Nuclear Spectra of Polar-Ring Galaxies

The cluster of galaxies Abell 376 . ⋆

We present a dynamical analysis of the galaxy cluster Abell 376 based on a set of 73 velocities, most of them measured at Pic du Midi and Haute-Provence observatories and completed with data from the literature. Data on individual galaxies are presented and the accuracy of the determined velocities is discussed as well as some properties of the cluster. We obtained an improved mean redshift val...

Optical off-nuclear spectra of quasar hosts and radio galaxies

We present optical (∼ 3200Å to ∼ 9000Å ) off-nuclear spectra of 26 powerful active galaxies in the redshift range 0.1 ≤ z ≤ 0.3, obtained with the Mayall and William Herschel 4-meter class telescopes. The sample consists of radio-quiet quasars, radio-loud quasars (all with −23 ≥ MV ≥ −26) and radio galaxies of Fanaroff & Riley Type II (with extended radio luminosities and spectral indices compa...

NUV–IR colours of red sequence galaxies in local clusters

We present GALEX near-UV (NUV ) and 2MASS J band photometry for red sequence galaxies in local clusters. We define quiescent samples according to a strict emission threshold, removing galaxies with very recent star formation. We analyse the NUV –J colour–magnitude relation (CMR) and find that the intrinsic scatter is an order of magnitude larger than for the analogous optical CMR (∼0.35 rather ...

Fine structure of the red clump in Local Group galaxies

Some fine structures can nowadays be identified in the high-quality colour-magnitude diagrams (CMD) of Local Group galaxies. The clump of red giants, for instance, may present a significant colour spread, and extensions to both brighter and fainter luminosities. Such features are predicted by population synthesis models which consider stars in the complete relevant ranges of ages and metallicit...