Cool Stars 14 - Submitted Abstract # 48
This version created on 05 October 2006

Cool Stars in the Second XMM-Newton Serendipitous Source Catalogue
(2XMM):  Time Variability


John Pye, University of Leicester
Duncan Fyfe, University of Leicester
Anja Schroeder, University of Leicester
Natalie Webb, Centre d'Etude Spatiale des Rayonnements Toulouse
Ian Stewart, University of Manchester

A pre-release (2XMMp) of the second XMM-Newton Serendipitous Source
Catalogue (2XMM) has recently (July 2006) been made public, with the
full release due later in 2006.  This comprehensive catalogue of
serendipitous X-ray sources from the European Space Agency's (ESA)
XMM-Newton observatory has been constructed by the XMM-Newton Survey
Science Centre (SSC) on behalf of ESA.  The catalogue contains more
than 150,000  X-ray source detections which relate to more than
120,000  unique X-ray sources, making it the largest catalogue of
astronomical X-ray sources ever produced (see e.g.
http://xmmssc-www.star.le.ac.uk/ or
http://xmm.esac.esa.int/external/xmm_data_acc/xsa/index.shtml ).  The
catalogue contains source detections drawn from most of the
observations publicly available after ~6.5 years of operations.  The
total sky area covered is ~400  deg^2.  The median flux (in the total
photon energy band 0.2 - 12 keV) of the catalogue sources is ~2.4E-14
erg cm^-2 s^-1.  X-ray spectra and lightcurves are generated for the
brighter objects (~10% of the total catalogue).  We will highlight the
relevance of 2XMM for cool-star research, focussing on the time-domain
aspects.

----------------------------------