Mathematics – Probability
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..411..466m&link_type=abstract
Astronomical Data Analysis Software and Systems XVIII ASP Conference Series, Vol. 411, proceedings of the conference held 2-5 No
Mathematics
Probability
4
Scientific paper
The XCat-DB hosts the newly-released 2XMMi catalogue together with many associated products such as X-ray images, spectra, time series and optical finding charts. One of its innovative features is to give access to cross-correlations with ˜ 200 archival catalogues. For the most important ones (SDSS R6, USNOB-1 and 2MASS), a specific likelihood ratio algorithm has been used to compute identification probabilities with entries in these catalogues. The XCat-DB is meant to be a ``discovery tool'' facilitating the identification of individual X-ray sources, thanks to locally-stored information and to direct VO access. Other important science goals are the creation of large source samples sharing homogeneous multi-wavelength properties and the search for interesting outliers. The current interface offers simple source selection and easy browsing through 2XMMi entries, associated data files and proposed X-ray source counterparts. Based on Saada, correlation information are stored in persistent relationships allowing fast query execution and navigation across the heterogeneous data sets. More complex queries mixing constraints on X-ray properties, on the existence or not of a possible counterpart in an archival catalogue and on the probability of association can also be made. The database can be accessed at XCat-DB (http://xcatdb.u-strasbg.fr/2xmmi/).
Michel Laurent
Motch Ch.
Pineau François-Xavier
No associations
LandOfFree
The XCat-DB: A Multi-wavelength View on the 2XMMi Catalogue does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The XCat-DB: A Multi-wavelength View on the 2XMMi Catalogue, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The XCat-DB: A Multi-wavelength View on the 2XMMi Catalogue will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-834621