BRIGHT lights, BIG city: Massive galaxies, giant Ly-a nebulae, and proto--clusters

Details BRIGHT lights, BIG city: Massive galaxies, giant Ly-a nebulae, and proto--clusters BRIGHT lights, BIG city: Massive galaxies, giant Ly-a nebulae, and proto--clusters

2002-09-10

arxiv.org/abs/astro-ph/0209173v1

Astronomy and Astrophysics

Astrophysics

Paper presented at the SPIE conference on Astronomical Telescopes and Instrumentation `Discoveries and Research Prospects from

Scientific paper

High redshift radio galaxies are great cosmological tools for pinpointing the most massive objects in the early Universe: massive forming galaxies, active super--massive black holes and proto--clusters. We report on deep narrow--band imaging and spectroscopic observations of several z > 2 radio galaxy fields to investigate the nature of giant Ly-alpha nebulae centered on the galaxies and to search for over--dense regions around them. We discuss the possible implications for our understanding of the formation and evolution of massive galaxies and galaxy clusters.

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