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29 March 2024
 
  » arxiv » astro-ph/0510223

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ESO Imaging Survey: Optical follow-up of 12 selected XMM-Newton fields
J. P. Dietrich ; J.-M. Miralles ; L. F. Olsen ; L. da Costa ; A. Schwope ; C. Benoist ; V. Hambaryan ; A. Mignano ; C. Motch ; C. Rite ; R. Slijkhuis ; J. Tedds ; B. Vandame ; M. G. Watson ; S. Zaggia ;
Date 7 Oct 2005
Abstract(Abridged) This paper presents the data recently released for the XMM-Newton/WFI survey carried out as part of the ESO Imaging Survey (EIS) project. The aim of this survey is to provide optical imaging follow-up data in BVRI for identification of serendipitously detected X-ray sources in selected XMM-Newton fields. In this paper, fully calibrated individual and stacked images of 12 fields as well as science-grade catalogs for the 8 fields located at high-galactic latitude are presented. The data covers an area of sim 3 square degrees for each of the four passbands. The median limiting magnitudes (AB system, 2" aperture, 5sigma detection limit) are 25.20, 24.92, 24.66, and 24.39 mag for B-, V-, R-, and I-band, respectively. These survey products, together with their logs, are available to the community for science exploitation in conjunction with their X-ray counterparts. Preliminary results from the X-ray/optical cross-correlation analysis show that about 61% of the detected X-ray point sources in deep XMM-Newton exposures have at least one optical counterpart within 2" radius down to R simeq 25 mag, 50% of which are so faint as to require VLT observations thereby meeting one of the top requirements of the survey, namely to produce large samples for spectroscopic follow-up with the VLT, whereas only 15% of the objects have counterparts down to the DSS limiting magnitude.
Source arXiv, astro-ph/0510223
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