Here we list several web services which may be helpful for doing research with the XMM-Newton data.

Flix upper limit server

Currently available only for 3XMM-DR4 subset of data: http://www.ledas.ac.uk/flix/flix3

TAP (Table Access Protocol) server

TAP server at CDS VizieR allows you to do large scale cross-matches of your source lists with the XMM-Newton catalog (sources table only): 3XMM-DR5, 3XMM-DR6 (3XMM-DR7 to be released soon). Alternatively, in a TAP client of your choice (TOPCAT is a very good option) enter service url http://tapvizier.u-strasbg.fr/TAPVizieR/tap and then use "IX/46/xmm3r5s" for the 3XMM-DR5 sources table name or "IX/50/xmm3r6s" for the 3XMM-DR6 sources table name (3XMM-DR7 to be released soon).

XCatDB

The SSC provides another Web interface based on SAADA and named the XCatDB (http://xcatdb.unistra.fr). Its main features are: