1. nam08, belfast apr 1-4, 2008
martin still, christopher brindle, mat page,
vladimir yershov, alice breeveld, houri ziaeepour
(ucl-mssl)
simon rosen (leicester)
antonio talavera (esa)

2. comparison with GALEX source sample
content: sources
comparison with GALEX source sample
Filter
FOV (arcmin2)
max(c/s)
zero-pnt (mag)
eff. area (cm2)
bandpass (angstrom)
PSF (arcsec)
XMM-OM
UVW2 36
400
16.57 4
2.0
UVM2 23
17.41 9
1.8
UVW1 51
18.57 22 U
19.19 43
1.6 B
19.08 40
1.4 V
17.92 24
GALEX
FUV
41 252 89
18.82
4.3
NUV
471
20.08 62
5.3
galex has  sky coverage
galex has bluer energy sensitivity
simultaneous 2xmm source data
less source confusion from om psf
om is deeper than galex ais (mAB < 20.5)
three om colours in nuv passband
om sensitivity within the galex-sdss energy gap
variability on hour and year timescales
May 30, 2008
The X-ray Universe 2008

3. all sources without quality flags
content: source depth
all sources without quality flags
May 30, 2008
The X-ray Universe 2008

4. astrometric correction using usno-b1.0
content: astrometry
astrometric correction using usno-b1.0
May 30, 2008
The X-ray Universe 2008

5. filtered xmm pointings included within catalogue
content: sky coverage
filtered xmm pointings included within catalogue
Filter
W (deg2)
Nsrc (> 3s)
fqlty (%)
UVW2
36.0
1.0 x 105 75
UVM2
23.2
1.3 x 105 77
UVW1
51.4
5.5 x 105 74
May 30, 2008
The X-ray Universe 2008

6. number of quality issues decreases into the uv
quality flagging
number of quality issues decreases into the uv
May 30, 2008
The X-ray Universe 2008

7. observed and computed tracks of galaxies and stars
colour-colour planes
observed and computed tracks of galaxies and stars
May 30, 2008
The X-ray Universe 2008

8. main sequence and galactic dust columns
colour-colour planes
main sequence and galactic dust columns
May 30, 2008
The X-ray Universe 2008

9. extra-galactic sources and redshift
colour-colour planes
extra-galactic sources and redshift
May 30, 2008
The X-ray Universe 2008

10. 2xmm variable sources uv counterparts May 30, 2008
The X-ray Universe 2008

11. xmm-newton serendipitous uv source catalogue
summary
available through the esa xsa system and vo from july queries before then: martin still
700,000 uv sources from 2,388 xmm-newton pointings.
3-colour data across the galex nuv band.
simultaneous x-ray and optical data.
source variability from multiple exposures and pointings.
catalogue will go deeper still when individual exposures are mosaiced in the xmm sas pipeline.
swift-uvot uv source archive to follow.
May 30, 2008
The X-ray Universe 2008