1. Progress report on LSS Catalogue web site and database  (2) which database tables ? on which sky area ? who can access them ?  (3) what path did X-ray, SWIRE and CFHTLS data go through ?  (4) the ingestion of X-ray data  SWIRE and CFHTLS datasets  (5) access details and work done in the Milan database  (6) basic numerology  (7) where are we on the sky ?  (8) more numerology  (9) source density plots (required for identification checks)  identification  (10) the past (VVDS 4  )  (11) the present (XMDS)  (12) the future  (13) open issues LSS Brera Sep 2005 -1 Lucio Chiappetti IASF MI 1234567891011121314

2. Where are we and what do we have ? LSS Brera Sep 2005 -2 Lucio Chiappetti IASF MI X-rayoptical/IR/spectroother/external G fields + B fields VVDS field and also CFHTLS fields SWIRE radio clusters external other xmdsepic january03 may03 nov04 may05 virphot bad loiano vimos sacphot specfup d1 w1 swcatalogues swire virradio radio loto xlssc simbad ned usno galex?? who? 1234567891011121314

3. what path did data go through ? LSS Brera Sep 2005 -3 Lucio Chiappetti IASF MI Saclay nov04 FITS CFHTLS D1 R presurvey may05 FITS CFHTLS W1 IPAC Milan ( repository ) data products swirexlss swirexd1 swirexpresurvey data products swirexmay05 swirexw1 Milan (DB) nov04 swire d1 may05 w1 SWIRE r1 SWIRE r2 1 1 2 2 3 3 1 band merging and ingestion 2 read all in scratch but keep only within 9” from XMDS 3 read all in scratch but keep only within 9” from XMDS and may05 non spurious within 10 arcmin offaxis non spurious any offaxis 1234567891011121314

4. The ingestion of X-ray data XMDS based on simultaneous detection (Baldi) in 5 bands data below probability threshold are not ingested 1322 detections in G fields nov04 based on independent detections (Xamin) in 5 bands outer part of FOV not considered by det. mask may05 also based on independent detections in 2 bands (B CD) only outermost part of FOV still not considered all sources supplied are ingested, need to filter on detection ML < 20 band merging at ingestion, within 10 arcsec inclusive P/E classification totalnon-spuriousnon- sp. & G fields original detections band B 798628691389 original detections band CD 59171009 530 detections in merged file120153066 1482 of which detected in both bands 19151621 811 LSS Brera Sep 2005 -4 Lucio Chiappetti IASF MI 1234567891011121314

5. SWIRE and CFHTLS datasets  full ASCII gz files supplied by IPAC based on correlations done there will not be ingested in database as such, available for retrieval  files with no X-ray (full SWIRE set) available only to Franco-Canado-SWIRians they are just hosted blindly in Milan, 'plain' LSS people cannot access (MoU1!)  unfortunately no direct X-ray to CFHTLS correlation supplied (but MoU2 ?)  Ingested blindly in short term temporary table (but need density plots ?) separately all SWIRE or all CFHTLS from a given date (Feb, Jul)  then extract all sources within 9” from X-ray position into a database table (access ?) only XMDS positions for Feb, also may05 (full) positions for Jul  SWIRE data affected by “tiling duplications”  Feb and Jul SWIRE data from different processing (no unique id's) Should we abandon Feb SWIRE release ? No Feb/may05 done, 50 XMDS kept  Feb D1 field re-observed by some of the 11 Jul (W1) fields D1 has ugriz+I, W1 has ugriz (10 fields) or ugiz (1 field) LSS Brera Sep 2005 -5 Lucio Chiappetti IASF MI 1234567891011121314

6. Numerology LSS Brera Sep 2005 -6 Lucio Chiappetti IASF MI 3065 114 2431 1073 5319 1805 1184 6079 2512 X-ray src may05 given to IPAC of which only in band CD IPAC returned records swireXmay of which distinct sources IPAC records in swirexw1 11 fields of which distinct sources W1 ingested within 9” from xmds W1 ingested within 9” from may05 of which distinct non-spurious surviving close to xmds only swire ingested within 9” from xmds swire ingested within 9” from may05 of which distinct non-spurious surviving close to xmds only kept swire entries kept w1 entries 3522 3170 342824 313821 1959 9660 288 9918 313821 1766 9753 188 9109 3029 494 1805... 1825... X-ray src nov04 given to IPAC of which not in bands B nor CD ? IPAC returned records swireXlss of which distinct sources IPAC records in swirexd1 of which distinct sources IPAC records in swirexpresurvey of which distinct sources D1 ingested within 9” from xmds D1 ingested within 9” from may05 surviving close to xmds only swire ingested within 9” from xmds of which prob. not in July dataset (the rest has been removed) kept d1 entries 2336 2298 55540 48273 230243 226781 1764 50 53328 222948 934 3327 88 3315 X-rayFebruary 2005 (D1) datasetSWIREOptical X-rayJuly 2005 (W1) datasetSWIREOptical 1234567891011121314

7. where are we on the sky LSS Brera Sep 2005 -7 Lucio Chiappetti IASF MI 1234567891011121314

8. More numerology LSS Brera Sep 2005 -8 Lucio Chiappetti IASF MI counterpartsdistinct X-raycounterpartsdistinct X-ray XMDS with respect to may05 non spurious w.r.t. no counterpart within 9” within 9” no counterpart within 6" within 6” within 4” within 2” no counterpart within 9" within 9" no counterpart within 6" within 6" within 4" within 2" no counterpart within 9" within 9" no counterpart within 6" within 6" within 4" within 2" 1122 766 572 361 2100 1461 1054 606 2322 1710 1222 679 775 547 792 530 479 343 249 1073 296 1026 904 557 134 1188 162 1160 1039 640 D1 W1 SWIRE no counterpart within 9” within 9” no counterpart within 6" within 6” within 4” within 2” no counterpart within 9" within 9" no counterpart within 6" within 6" within 4" within 2" no counterpart within 9" within 9" no counterpart within 6" within 6" within 4" within 2" 1378 946 693 364 3606 2409 1741 900 4736 3522 2510 1307 2395 671 2429 637 543 344 1261 1805 1380 1686 1470 829 552 2514 632 2434 2152 1255 D1 W1 SWIRE 1234567891011121314

9. “official” density functions wanted absolute area normalization ? completeness ? analytic fit ? LSS Brera Sep 2005 -9 Lucio Chiappetti IASF MI 1234567891011121314

10. Identification : the past (the XMDS/VVDS 4  catalogue) (Chiappetti et al. 2005 A&A 439, 413) Tables used : xmdsepic [may03]virphot+ [sacphot] virradio radio [loto][specfup] simbad ned Sample restricted to : S/N > 4  in one+ band and VVDS thumbnail Take all possible combinations (after coarse precorrelations) Primitive automatic cleanup on id's Manual cleanup checking distances (& visual inspection) Manual first ranking of identifications (visual inspection) Evaluation and application of astrometric correction (eposcorr) Manual final ranking of identifications (visual inspection) Verification a posteriori using chance probability <- density No spectroscopy data used LSS Brera Sep 2005 -10 Lucio Chiappetti IASF MI 338 4789 1459 820 valid ranks 364 sources 286 1234567891011121314

11. Identification : the present Tables used : xmdsepic may05 virphot+ vimos [sacphot] d1 w1 swire virradio radio [loto] [specfup] xlssc simbad ned usno No sample restriction (repeat also old; use XMDS as reference case) i.e. do XMDS any , inside and outside VVDS Take all possible combinations (after coarse precorrelations) Extensive automatic cleanup on id's, distances etc. Automatic pre-ranking of identifications (probabilities) Manual cleanup and re-ranking (& visual inspection when possible) Self-astrometric correction to be done for outer G fields (USNO based preliminary correction done for may05 not used forXMDS yet) TBD final ranking of identifications (visual inspection ?) LSS Brera Sep 2005 -11 Lucio Chiappetti IASF MI 1322 198294 9508 TBD 1234567891011121314

12. Identification : the future First complete what is missing from the present ! Use all current tables with may05 (or newer) as “pivot” Define sample restrictions once forever Work similarly to the full XMDS sample, also exploiting the work already done for the XMDS=may05 X-ray sources USNO astrometric correction to be verified and improved Do we need any images for visual inspection ? LSS Brera Sep 2005 -12 Lucio Chiappetti IASF MI 1234567891011121314

13. Open issues  which old datasets (X, opt, SWIRE) to drop ?  open d1 w1 swire tables ; how ?  official density functions wanted ; who ?  new IPAC release ?  number of bands, HRs, flux ratios as AGN signatures  usage of photometric z ? which data and models ? new Saclay release ? what changes ? B-CD distance ? new recipes ? S/N ? flux CF ?  usage of GALEX data ? LSS Brera Sep 2005 -13 Lucio Chiappetti IASF MI 1234567891011121314

14. Oh what a mess 1322 X-ray sources get 9508 tentative counterparts after auto cleanup... 341 have a single counterpart 272 have just 2... 149, 147, 42, 53... have 3,4,5,6...... and so on and so forth, two have 96, one has 540, and one has 912 ! LSS Brera Sep 2005 -14 (aux) Lucio Chiappetti IASF MI 1234567891011121314 source #755 “distinct” multiplicities (well known from XMDS/VVDS) auto cleanup on distance no cleanup 8 entries : 2 rank 2, 4 rank 3 w/ optical... radio source at 8” and NED NVSS also as rank 3 may05 1 virphot 5 sacphot 5 both 5 d1 2 3 w1 2 3 both 2 7 11 swire 2 3 19 virradio 4 radio 3 12 simbad 1 ned 4 48 usno 0 1 specfup 0 1 xlssc 0 1 loto 0 1 912 no nulls w/ nulls 3 multiple components of VIRMOS1.4GHz J022559-044405, also in NED,single in SIMBAD, also “Leiden” radio source is multiple, NED has also an NVSS : all far, 8” to 19”

15. space for title space for text LSS Brera Sep 2005 -15 Lucio Chiappetti IASF MI 123456789101112131415161718192021