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Release of the new version (3XMM-DR5) of the XMM-Newton Serendipitious source catalogue:

The first incremental release of the 3XMM catalogue, 3XMM-DR5, was made public in April 2015 (Rosen et al., 2015; http://arxiv.org/abs/1504.07051).  3XMM-DR5, which supersedes the previous release, 3XMM-DR4, contains 565962 detections arising from 396910 unique sources drawn from 7781 XMM observations.  The incremental catalogue covers around 880 square degrees of sky, taking account of overlaps between observations.

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Welcome to Estrella Sanchez

Welcome to Estrella Sanchez who has joined the ARCHES team at Strasbourg Astronomical Observatory.

ARCHES is progressing well!

The ARCHES science work and management were reported to be very satisfactory following the technical review held in May 2014 and the approval of the mid-term periodic report.