NOAO > Observing Info > Approved Programs > 2009A-0149
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NOAO > Observing Info > Approved Programs > 2009A-0149 |
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PI: John Stott, Liverpool John Moores University, jps@astro.livjm.ac.uk
Address: Astrophysics Research Institute , Liverpool John Moores University , Twelve Quays House , Egerton Wharf, Birkenhead, CH41 1LD, UK, United Kingdom
CoI: Chris Collins, Liverpool John Moores University
CoI: Adam Stanford, Lawrence Livermore National Laboratory
CoI: Alastair Edge, University of Durham
CoI: Matt Hilton, University of KwaZulu-Natal
CoI: Kathy Romer, University of Sussex
CoI: Mark Swinbank, University of Durham
CoI: Chris Miller, Cerro Tololo Interamerican Observatory
CoI: Bob Mann, Royal Observatory Edinburgh and ATC
CoI: Ed Lloyd-Davies, University of Sussex
CoI: Bob Nichol, University of Portsmouth
CoI: Andrew Liddle, University of Sussex
Title: The XCS/DXS search for the highest redshift galaxy clusters
Abstract:
We select the highest redshift galaxy clusters by combining X-ray and
near-infrared observations from the XMM Cluster Survey and UKIDSS Deep
eXtragalactic Survey respectively (DXS). Having access to both of these rich
datasets provides us with a unique opportunity to select galaxy clusters in
the redshift range 1<z<2. This proposal builds on our recent successful
follow-up of UKIDSS near-infrared selected and XCS X-ray selected clusters.
The former yielding 11 0.8<z<1.3 clusters including the discovery of a
massive supercluster at z=0.9 while the latter discovered the most distant
X-ray cluster (XMMXCSJ2215, z=1.46). By combining our near-infrared and X-ray
selection we will discover the highest redshift galaxy clusters yet known,
significantly increasing the number of clusters above z=1 and pushing out
beyond z=1.5. This will provide ourselves and others with the tools to test
hierarchical build up of the most massive structures in the Universe and the
evolution of their component galaxies.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
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NOAO > Observing Info > Approved Programs > 2009A-0149 |
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