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The XMM-LSS survey: The XMDS/VVDS 4 sigma catalogue

L. Chiappetti·M. Tajer·G. Trinchieri·D. Maccagni·L. Maraschi·L. Paioro·M. Pierre·J. Surdej·O. Garcet·E. Gosset·O. Le Fevre·E. Bertin·H. J. McCracken·Y. Mellier·S. Foucaud·M. Radovich·V. Ripepi·M. Arnaboldi
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Abstract

We present a first catalogue of X-ray sources resulting from the central area of the XMM-LSS (Large Scale Structure survey). We describe the reduction procedures and the database tools we developed and used to derive a well defined catalogue of X-ray sources. The present catalogue is limited to a sub-sample of 286 sources detected at 4 sigma in the 1 deg^2 area covered by the photometric VVDS (VIRMOS VLT Deep Survey), which allows us to provide optical and radio identifications. We also discuss the X-ray properties of a larger X-ray sample of 536 sources detected at > 4 sigma in the full 3 deg^2 area of the XMM Medium Deep Survey (XMDS) independently of the optical identification. We also derive the logN-logS relationship for a sample of more than one thousand sources that we discuss in the context of other surveys at similar fluxes.

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L. Chiappetti, M. Tajer, G. Trinchieri, D. Maccagni, L. Maraschi, L. Paioro, M. Pierre, J. Surdej, O. Garcet, E. Gosset, O. Le Fevre, E. Bertin, H. J. McCracken, Y. Mellier, S. Foucaud, M. Radovich, V. Ripepi, M. Arnaboldi. 2005-05-06. The XMM-LSS survey: The XMDS/VVDS 4 sigma catalogue. https://doi.org/10.1051/0004-6361%3A20042583

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