Reference : The XMM-LSS survey. Survey design and first results
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/32466
The XMM-LSS survey. Survey design and first results
English
Pierre, Marguerite [CEA/DSM/DAPNIA, Service d'Astrophysique, Saclay, F-91191 Gif sur Yvette, France]
Valtchanov, Ivan [CEA/DSM/DAPNIA, Service d'Astrophysique, Saclay, F-91191 Gif sur Yvette, France ;]
Altieri, Bruno [XMM Science Operations Centre, Villafranca, Spain]
Andreon, Stefano [Osservatorio Astronomico di Brera, Milano, Italy]
Bolzonella, Micol [IASF, Milano, Italy ;]
Bremer, Malcolm [Department of Physics, University of Bristol, UK]
Disseau, Ludovic [Ecole Normal Supérieure, Paris, France ; European Southern Observatory, Santiago, Chile]
Dos Santos, Sergio [CEA/DSM/DAPNIA, Service d'Astrophysique, Saclay, F-91191 Gif sur Yvette, France]
Gandhi, Poshak [European Southern Observatory, Santiago, Chile]
Jean, Christophe [Institut d'Astrophysique et de Géophysique, Université de Liège, Belgium]
Pacaud, Florian [CEA/DSM/DAPNIA, Service d'Astrophysique, Saclay, F-91191 Gif sur Yvette, France]
Read, Andrew [School of Physics and Astronomy, University of Birmingham, UK ;]
Refregier, Alexandre [CEA/DSM/DAPNIA, Service d'Astrophysique, Saclay, F-91191 Gif sur Yvette, France]
Willis, Jon [European Southern Observatory, Santiago, Chile ; Pontificia Universidad Católica, Santiago, Chile ;]
Adami, Christophe [Laboratoire d'Astrophysique, Marseille, France]
Alloin, Danielle [European Southern Observatory, Santiago, Chile]
Birkinshaw, Mark [Department of Physics, University of Bristol, UK]
Chiappetti, Lucio [IASF, Milano, Italy]
Cohen, Aaron [Naval Research Laboratory, Washington, USA]
Detal, Alain mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
Duc, Pierre-Alain [CEA/DSM/DAPNIA, Service d'Astrophysique, Saclay, F-91191 Gif sur Yvette, France]
Gosset, Eric mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) >]
Hjorth, Jens [Astronomical Observatory, Copenhagen, Denmark]
Jones, Laurence [School of Physics and Astronomy, University of Birmingham, UK]
LeFevre, Olivier [Laboratoire d'Astrophysique, Marseille, France]
Lonsdale, Carol [Infrared Processing and Analysis Center, Caltech, USA]
Maccagni, Dario [IASF, Milano, Italy]
Mazure, Alain [Laboratoire d'Astrophysique, Marseille, France]
McBreen, Brian [Physics Department, University College, Dublin, Republic of Ireland]
McCracken, Henry [Laboratoire d'Astrophysique, Marseille, France ;]
Mellier, Yannick [Institut d'Astrophysique, Paris, France]
Ponman, Trevor [School of Physics and Astronomy, University of Birmingham, UK]
Quintana, Hernan [Pontificia Universidad Católica, Santiago, Chile]
Rottgering, Huub [Leiden Observatory, Leiden, The Netherlands]
Smette, Alain [Institut d'Astrophysique et de Géophysique, Université de Liège, Belgium]
Surdej, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Starck, Jean-Luc [CEA/DSM/DAPNIA, Service d'Astrophysique, Saclay, F-91191 Gif sur Yvette, France]
Vigroux, Laurent [CEA/DSM/DAPNIA, Service d'Astrophysique, Saclay, F-91191 Gif sur Yvette, France]
White, Simon [Max Planck Institut für Astrophysik, Garching bei München, Germany]
1-Sep-2004
Journal of Cosmology and Astroparticle Physics [= JCAP]
09
011
Yes (verified by ORBi)
International
1475-7516
[en] XMM-LSS
[en] The XMM Large Scale Structure survey (XMM-LSS) is a medium deep large area X-ray survey. Its goal is to extend large scale structure investigations attempted using ROSAT cluster samples to two redshift bins between 0<z<1 while maintaining the precision of earlier studies. Two main goals have constrained the survey design: the evolutionary study of the cluster cluster correlation function and of the cluster number density. The adopted observing configuration consists of an equatorial mosaic of 10 ks pointings, separated by 20^\prime and covering 8° à 8°, giving a pointsource sensitivity of {\sim } 5\times 10^{-15}~{\mathrm {erg~cm^{-2}~s^{-1}}} in the 0.5 2 keV band. This will yield more than 800 clusters of galaxies and a sample of X-ray AGN with a space density of about 300 deg[SUP]-2[/SUP]. We present the expected cosmological implications of the survey in the context of LgrCDM models and cluster evolution. We give an overview of the first observational results. The XMM-LSS survey is associated with several other major surveys, ranging from the UV to the radio wavebands, which will provide the necessary resources for X-ray source identification and further statistical studies. In particular, the associated CFHTLS weak lensing and AMiBA Sunyaev Zel'dovich surveys over the entire XMM-LSS area will provide for the first time a comprehensive study of the mass distribution and of cluster physics in the universe on scales of a few hundred Mpc. We describe the main characteristics of our wavelet-based X-ray pipeline and source identification procedures, including the classification of the cluster candidates by means of a photometric redshift analysis. This permits the selection of suitable targets for spectroscopic follow-up. We present preliminary results from the first 25 XMM-LSS pointings: X-ray source properties, optical counterparts, and highlights from the first Magellan and VLT/FORS2 spectroscopic runs as well as preliminary results from the NIR search for z>1 clusters. The results are promising and, so far, in accordance with our predictions. In particular: (1) we reproduce the logN logS distribution for point sources obtained from deeper surveys at our sensitivity; (2) we find a cluster number density of 15 20 deg[SUP]-2[/SUP] (3) for the first time, we statistically sample the group mass regime at a redshift out to {\sim } 0.5 . Paper based on observations obtained with the XMM,CFH, ESO (Prg: P70. A-0283 .A-0733), VLA, CTIO and Las Campanas observatories.
Researchers ; Professionals
http://hdl.handle.net/2268/32466
10.1088/1475-7516/2004/09/011
http://adsabs.harvard.edu/abs/2004JCAP...09..011P
The authors thank SAO/NASA ADS Astronomy Abstract Service for their deposit authorization
http://de.arxiv.org/abs/astro-ph/0305191

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