The SAURON team recently completed an integral-field survey of nearby early-type galaxies. Relying primarily on the ionised-gas and stellar linestrength (age...

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The bright nebula NGC 6334 extends nearly 0.4 square degrees across the sky and is located at a distance from the Sun of 1.61 kpc. This region contains some of...

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The ring images presented here are part of a larger William Herschel Telescope (WHT) imaging survey (1999 and 2000) conducted to characterize the nuclear and...

The study of satellite galaxies can provide information on the merging and aggregation processes which, according to the hierarchical clustering models, form...

An analysis of the IRAS data for a sample of classical (optically selected) Seyfert galaxies is presented. The IRAS fluxes at 25 micron, 60 micron, and 100...

The present volume on stellar formation discusses basic physical principles relevant to such processes, regions of recent star formation, galaxy formation and...

Massive star formation in the central regions of spiral galaxies plays an important role in the dynamical and secular evolution of their hosts. Here, we...