Catalogue and other products developed within the framework of this project are availables here
4XMM-DR13 and 4XMM-DR13s
A new version of the XMM-Newton EPIC Serendipitous Source Catalogue, 4XMM-DR13, has been released on June 2023 by the XMM-Newton Survey Science Centre (XMM-SSC) in collaboration with the SOC. This version includes an extra year of data with respect to 4XMM-DR12. 4XMM-DR13 includes 983948 X-ray detections which relate to 656997 unique X-ray sources from 13243 observations that were public by the 31st December 2022. 4XMM-DR13 covers a total sky area, with at least 1 ks exposure, of 1328 square degrees if overlaps are taken into account, where some regions of the sky have been pointed as many as 90 times. Around 9% of all the detections are classified as extended, and spectra and time series have been extracted for 36% of the detections. The median positional uncertainty of the catalogue detections is 1.57 arcseconds (with a standard deviation of 1.43). Median fluxes in the catalogue are ~5.2E-15 and ~1.2E-14 erg/cm2/s in the soft (0.2-2 keV) and hard (2-12 keV) X-ray band, respectively.
With the detection catalogue 4XMM-DR13, we release the stacked catalogue 4XMM-DR13s, created from overlapping observations. Some sources have a total of 2.8 Ms of observation. Stacking results in better source parameters, higher sensitivity, and direct access to measures of long-term flux variability. 4XMM-DR13s is built from 1688 groups drawn from 9796 observations. Each group includes between 2 and 372 observations. Stacked source detection is performed on all overlapping exposures of reasonable quality. For lower-quality exposures, parameters are provided from PSF photometry. 4XMM-DR13s contains 401596 sources, of which 310478 have several contributing observations. From the individual observations, almost 1.7 million flux measurements (and related parameters) of all the sources are derived in total during stacked source detection and photometry. 4XMM-DR13s reaches a median depth of ~2.5E-15 and ~6.8E-15 erg/cm2/s in the soft (0.2-2 keV) and hard (2-12 keV) X-ray band, respectively. 7333 sources are variable on the long term.
The detection catalogue is described in the paper Webb et al. (2020) and the stacked catalogue is further described in Traulsen et al. (2020). Details of the catalogue, the catalogue files and full 4XMM documentation are available on the XMM-SSC webpages ( http://xmmssc.irap.omp.eu ) at:
FITS files containing summary information about the observations used in the catalogue are also provided. FITS and CSV versions of the full 4XMM catalogue and a slimline version of the FITS file are also available for
The slimline version of 4XMM-DR13 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, 4XMM is also distributed through:
A new version of the XMM-Newton EPIC Serendipitous Source Catalogue, 4XMM-DR12, has been released on July 2022. The production of the 4XMM-DR12 catalogue is a collaborative project involving the whole XMM-Newton SSC Consortium. The 4XMM-DR12 catalogue contains source detections drawn from 12712 XMM-Newton EPIC observations, covering an energy interval from 0.2 keV to 12 keV. These observations were made between 2000 February 3 and 2021 December 31 and all datasets were publicly available by 2021 December 31, but not all public observations are included in this catalogue. See more information here.
A new version of the XMM-Newton EPIC Serendipitous Source Catalogue, 4XMM-DR11, has been released on 18th August by the XMM-Newton Survey Science Centre (XMM-SSC) in collaboration with the SOC (see more details). Details of the catalogue, the catalogue files and full 4XMM documentation :
And the the slimline version :
Work package 6 deliverables
Fitting products for extracted spectra: this deliverable includes fits with a simple model (absorbed power law) to the pipeline spectra of the detections in the 4XMM DR11 catalogue and is structured in two files:
- a report explaining the procedure, quality control, techniques and models for the fits to the source and background and details the contents of the spectral catalogue
- an spectral catalogue with detection and fit parameters for each detection, as well as quality flags
Spectra and fitting products: this deliverable includes fits with two simple models (absorbed power law and absorbed black body) to the merged spectra of the sources in the 4XMM DR11s stacked catalogue and is structured in four files:
- a report explaining the procedure, quality control, techniques and models for the fits to the stacked source and background and details of the contents of the three catalogues
- a catalogue that lists for each of the sources in the 4XMM DR11s catalogue the number of detections used for the stacked spectra
- a catalogue that lists for each of the stacked spectra, which detections were used for it
- an spectral catalogue with detection and fit parameters for each stacked source, as well as quality flags
Fitting products for all sources: this deliverable includes fits with a simple model (absorbed power law) to the pipeline count rates from emldetect to all detections in the 4XMM DR11 catalogue and it is structured in two files:
- a report explaining the procedure, quality control, techniques and model for the fits to the count rates and details of the contents of the catalogue
- a catalogue with detection and fit parameters for each detection, as well as quality flags
Work package 7 deliverables
Algorithms, code and documentation describing auto classification of SUSS sources.
- report describing the work carried out to prepare the SUSS for the classification process, and the resulting classifications.
- tar file containing scripts, detailed instructions and software used in the preparatory work for classification.
Classifications of SUSS sources into stars, galaxies and QSOs.
Work package 8 deliverables
Deliverable D8.2 and D8.3
It has bee generated a catalogue containing each of the 630347 sources from 4XMM-DR12 and augmented it with data from other multi-wavelength catalogues and provided a classification of each source.