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GSFC XMM-Newton GOF Status Report #339: XMM-NEWTON NEWS #210


             XMM-NEWTON NEWS #210    ---    16-May-2018


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


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- XSA v10.0 release including access to the 3XMM (DR8) Catalogue

- Release of the new version the XMM-Newton Serendipitous Source
  Catalogue: 3XMM (DR8) and new outreach pages

XSA v10.0 release including access to the 3XMM (DR8) Catalogue

A new version of the XMM-Newton Science Archive (XSA v10.0) is available


There are  two main changes in  this version: it provides  access to the
incremental version  of the 3XMM Catalogue  (DR8, see next  item in this
newsletter)  and it uses  a new  image viewer  for the  interactive data
analysis  functionality  (done  via  the Remote  Interface  for  Science
Analysis, RISA, as announced in Newsletter#198). The new image viewer is
JS9  (https://js9.si.edu/)  replacing  DS9  and integrated  in  the  web
browser, making its usage more straightforward. In addition, the new XSA
version contains now  the Radiation Monitor files and  allows select and
download of these data.

Release of the new version the XMM-Newton Serendipitous Source
Catalogue: 3XMM (DR8) and new outreach pages

A  new version of  the XMM-Newton  EPIC Serendipitous  Source Catalogue,
3XMM-DR8, has  been released.  The  catalogue includes an extra  year of
data with respect to 3XMM-DR7, with 775153 X-ray detections which relate
to 531454 unique X-ray sources  from 10242 observations that were public
by the  31st December 2017.  3XMM-DR8  covers a total sky  area, with at
least 1 ks exposure, of ~1089  square degrees if overlaps are taken into
account, where some  regions of the sky have been pointed  as many as 59
times. 3XMM-DR8  is an increase of  approximately 7% in  terms of unique
sources compared with  3XMM-DR7, that was released in  June 2017. Around
9% 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  1.6
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 band, respectively.

The creation of the 3XMM Catalogue is a joint venture carried out by the
XMM-Newton Survey Science Centre  (XMM-SSC) 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 on the XMM-SSC webpages at


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


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/3xmmdr8/
HEASARC .... http://heasarc.gsfc.nasa.gov/W3Browse/xmm-newton/xmmssc.html
IRAP ....... http://xmm-catalog.irap.omp.eu/
LEDAS ...... http://www.ledas.ac.uk/

This  catalogue,  along  with  the  other  catalogues  produced  in  the
framework of ESA's XMM-Newton mission, will be presented at the workshop
'Treasures hidden  in high  energy catalogues' that  will take  place at
IRAP, Toulouse, France,  from the 22nd to the 24th  May 2018. Please see
the website for further details


With the  release of  the 3XMM-DR8 catalogue  XMM-SSC also  releases new
webpages aimed  at the general  public of all generations.   These pages
are a complement to the existing webpages, and can be found at


Yours sincerely,

XMM-Newton SOC

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