The
data products released in DR1 according to
XXL Paper I are
for each XMM pointing, soft and hard band, MOS1, MOS2 and pn camera):
- (photon) X-ray images (per band)
- (smoothed) wavelet images (per band)
- exposure maps (per XMM camera and per band)
The same data products are released in DR2 also associated to each source
in 3XLSS (but still one set of images per pointing per band).
In addition DR2 releases also, for each X-ray source
in 3XLSSOPTN or 3XLSSOPTS:
- a repository with FITS thumbnail images in various optical, IR and UV bands
- eventual links to SIMBAD
- eventual links to NED
Data products can be retrieved as individual images or packed in a tar file as explained below:
See also animated PDF tutorial
(animation works in full screen)
- To retrieve the data products for a set of pointings one should issue any valid
query on table xxlpointings returning one, a few, or all pointings, then
- From the Query Results page press View data, then Object Related Files in the
rightmost columns for the pointing of interest, then open the little folders until
you see the name of the fits.gz file to download
- Alternately from the Query Results page press Retrieve all objects related files,
then open the folder of the category of interest, click on "online generation",
enter a valid .tar.gz file name, and download it (soon or later at any time
via the User data button).
- Note the .tar.gz file will contain all images of all bands/cameras
for all pointings returned by the query. If this number is large, performance is not
guaranteed. Please act carefully (and delete after download).
Similarly if the query is performed on one of the catalogues for one or more X-ray
sources, the data products for the relevant pointings or sources will be returned,
typically as cumulative .tar.gz files.
For 3XLSSOPTN or 3XLSSOPTS individual thumbnail repositories and
the SIMBAD/NED links (which cannot be accessed in the tar files) can be accessed via
View data only if one ticks the tick box showing up
at the bottom of the Tables page, labelled
Show member tables (and data products!) also