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GSFC XMM-Newton GOF Status Report #324: XMM-NEWTON NEWS #199



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             XMM-NEWTON NEWS #199    ---    01-Jun-2017

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            XMM-Newton Science Operations Centre at
             ESA's European Space Astronomy Centre,
            Villanueva de la Canada,  Madrid, Spain

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SOC Home Page:
    http://www.cosmos.esa.int/web/xmm-newton
Helpdesk Web interface:
    http://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Helpdesk email address:
    xmmhelp@sciops.esa.int
News Mailing List:
    http://www.cosmos.esa.int/web/xmm-newton/newsletter

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Contents:


- XSA v9.5 release with access to the 3XMM (DR7) Catalogue

- Release of the new version of the XMM-Newton Serendipitous Source
  Catalogue: 3XMM (DR7)



XSA v9.5 release with access to the 3XMM (DR7) Catalogue
--------------------------------------------------------

A new version of the XMM-Newton Science Archive (XSA v9.5) is available
at

           https://www.cosmos.esa.int/web/xmm-newton/xsa

It includes, among other improvements, access to the incremental version
of the 3XMM catalogue (DR7):


New version of the XMM-Newton Serendipitous Source Catalogue: 3XMM (DR7)
------------------------------------------------------------------------

A  new version of  the XMM-Newton  EPIC Serendipitous  Source Catalogue,
3XMM-DR7, has  been released.  The  catalogue includes an extra  year of
data with  respect to 3XMM-DR6,  with 727790 detections which  relate to
499266 unique  sources from  9710 observations that  were public  by the
31st December 2016. 3XMM-DR7 covers a total sky area, with at least 1 ks
exposure, of  ~1032 square degrees  if overlaps are taken  into account,
where  some  regions  of  the  sky  have been  pointed  as  many  as  59
times. 3XMM-DR7 represents  an increase of approximately 7%  in terms of
unique  sources  compared  with  3XMM-DR6,  that was  released  in  July
2016. Around 12%  of all the detections are  classified as extended, and
spectra  and time  series  have been  extracted  for around  22% of  the
sources. The  median positional uncertainty of  the catalogue detections
is  1.7  arcseconds  (with  a   standard  deviation  of  1.39)  and  the
astrometric quality of 3XMM is  improved with respect to prior releases.
Median sensitivities in the catalogue are ~6E-15 and ~8E-15 erg/cm2/s in
the soft (0.2-2 keV) and hard (2-12 keV) X-ray bands, respectively.

The creation of the 3XMM catalogue is a joint venture carried out by the
XMM-Newton Survey Science Centre  Consortium. The catalogue is described
in the  paper Rosen, Webb, Watson et  al. 2016, A&A, 590,  1. Details of
the  catalogue, the  catalogue  files and  full  3XMM documentation  are
available at

      http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR7/3XMM_DR7.html

FITS files containing summary information about the observations used in
the catalogue are also provided. FITS  and CSV versions of the full 3XMM
catalogue and a slimline version of the FITS file are also available for
download at

           https://www.cosmos.esa.int/web/xmm-newton/xsa

The slimline version has only one row per unique source (rather than per
detection as in the main catalogue) and a reduced number of columns that
essentially pertain to the unique source quantities.

Alongside the XSA user interface, 3XMM is also distributed through:

XCATDB .... http://xcatdb.unistra.fr/3xmmdr7
HEASARC ... http://heasarc.gsfc.nasa.gov/W3Browse/xmm-newton/xmmssc.html
IRAP ...... http://xmm-catalog.irap.omp.eu/
LEDAS ..... http://www.ledas.ac.uk



Yours sincerely,

XMM-Newton SOC

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