The XMM-Newton and Spitzer View of Galaxy/AGN Formation at z = 2-3

F.J. Carrera, J. Ebrero, M. J. Page, Jason Stevens

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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The genesis of spheroids is central to our understanding of galaxy formation. They contain half of the stellar mass of the Universe, and almost all of the black hole mass. According to galaxy formation models, cluster ellipticals
form in high density regions through hierarchical merging of gas-rich subcomponents at early epochs. We have used X-ray absorbed QSOs at z 2-3 to signpost these regions, and found 2 proto-clusters of ultraluminous starburst
galaxies using submm observations. If these objects are to evolve into elliptical galaxies, they should contain growing massive black holes. These regions of
widespread collapse therefore represent a unique laboratory
within which we can study the complete sequence of early AGN evolution.
As part of a detailed multiwavelength ongoing programme,
we have used XMM-Newton and Spitzer to search for these buried AGN, and determine the evolutionary stage of the galaxies in the proto-clusters. Our
observations provide a powerful test for models of black hole growth in galaxy bulges.
Original languageEnglish
Title of host publicationThe X-ray Universe 2005
Subtitle of host publicationProceedings of 'The X-ray Universe 2005'
PublisherEuropean Space Agency (ESA)
Number of pages6
Publication statusPublished - 1 Jan 2006

Publication series

NameESA Special Publication
PublisherEuropean Space Agency


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