1 XID Programme n Imaging Programme: multiband optical/NIR imaging of XMM fields n Core programme: spectroscopic/archival identification of u1000 high b sources keV > erg cm -2 s -1 u1000 high b sources keV > erg cm -2 s -1 u1000 high b sources keV > erg cm -2 s -1 u1000 low b sources keV > erg cm -2 s -1

AXIS highlights n International Time Programme at La Palma: ~90 observing nights Apr 2000 to Apr 2002 n ~20% of time used Mostly as expected: Broad line AGN at high b Active Coronae at low b But also: A BAL QSO A Be+White Dwarf? accreting binary Several NELGs

3 AXIS wide-field imaging Optical: INT/WFC Near IR: INT/CIRSI

4 AXIS identifications (as of December 1, 2000)

5 Active Coronae

6 More active coronae Ca H&K HH

7 The G field (b=-1º) SS279

8 A Be+WD? accretion binary

9 Broad Line AGNs and QSOs

10 Redshift vs flux

11 A BAL QSO at z=1.82

12 Narrow-line X-ray emitting galaxies z=0.3 L X ~ erg s -1

13 What next? n Another optical spectra obtained n 7.5 more spectroscopic nights before end of 2000 ~100 spectroscopic identifications by the end of the year