a Search for X-Ray Emission from a Proto-Cluster at Z=3.8

Details a Search for X-Ray Emission from a Proto-Cluster at Z=3.8 a Search for X-Ray Emission from a Proto-Cluster at Z=3.8

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..987s&link_type=abstract

Chandra Proposal ID #03800269

Physics

Chandra Proposal Id #03800269

Scientific paper

Structure formation theories predict that massive galaxies at high-z should act as signposts to high-density environments, which evolve into the cores of rich clusters. These regions contain over-densities of young galaxies, including dusty, interaction-driven starbursts - the progenitors of massive ellipticals. Submm observations can identify these systems. Our submm survey around the z=3.8 radio galaxy, 4C41.17, reveals a clear excess of super-luminous galaxies, consistent with the star formation rate needed to form a massive galaxy in 10^8 years. We propose searching for the expected X-ray emission from this collapsed structure, placing stringent emission limits on the submm galaxies, and evaluating the obscured AGN and star formation contributions to their prodigious luminosities.

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