XMM-Newton-NEWS

 

XMM-Newton-NEWS  #199,    1-Jun-2017

XMM-Newton Science Operations Centre at
ESA's European Space Astronomy Centre,
P.O. Box - Apdo. 78, 28691 Villanueva de la Cañada, Madrid, Spain
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

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