Reference : The XMM Large-Scale Structure survey: the X-ray pipeline and survey selection function
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/22141
The XMM Large-Scale Structure survey: the X-ray pipeline and survey selection function
English
Pacaud, F. [> > > >]
Pierre, M. [> > > >]
Refregier, A. [> > > >]
Gueguen, A. [> > > >]
Starck, J. L. [> > > >]
Valtchanov, I. [> > > >]
Read, A. M. [> > > >]
Altieri, B. [> > > >]
Chiappetti, L. [> > > >]
Gandhi, P. [> > > >]
Garcet, Olivier [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Gosset, Eric mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) >]
Ponman, T. J. [> > > >]
Surdej, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
21-Oct-2006
Monthly Notices of the Royal Astronomical Society
Blackwell Publishing
372
2
578-590
Yes (verified by ORBi)
International
0035-8711
Oxford
[en] methods : data analysis ; surveys ; large-scale structure of Universe ; X-rays : galaxies : clusters ; X-rays : general
[en] We present the X-ray pipeline developed for the purpose of the cluster search in the XMM Large-Scale Structure (XMM-LSS) survey. It is based on a two-stage procedure via a dedicated handling of the Poisson nature of the signal: (i) source detection on multiresolution wavelet filtered images and (ii) source analysis by means of a maximum likelihood fit to the photon images. The source detection efficiency and characterization are studied through extensive Monte Carlo simulations. This led us to define two samples of extended sources: the C1 class that is uncontaminated, and the less restrictive C2 class that allows for 50 per cent contamination. The resulting predicted selection function is presented and the comparison to the current XMM-LSS confirmed cluster sample shows very good agreement. We arrive at average predicted source densities of about seven C1 and 12 C2 per deg(2), which is higher than any available wide field X-ray survey. We finally note a substantial deviation of the predicted redshift distribution for our samples from the one obtained using the usual assumption of a flux-limited sample.
ESA PRODEX Programme and Belgian Federal Science Policy Office
ESA PRODEX Programme "XMM-LSS"
Researchers ; Professionals
http://hdl.handle.net/2268/22141
10.1111/j.1365-2966.2006.10881.x
http://www3.interscience.wiley.com/journal/118550510/abstract
The authors thank arXiv.org for their deposit authorization and Blackwell Publishing for publication

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Pacaud_MNRAS_2006_372_578_590.pdfPublisher postprint876.15 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.