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 Lucio Chiappetti IASF MI

Where are we and what do we have ? LSS Brera Sep 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?

what path did data go through ? LSS Brera Sep 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 r 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

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 original detections band CD detections in merged file of which detected in both bands LSS Brera Sep Lucio Chiappetti IASF MI

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 Lucio Chiappetti IASF MI

Numerology LSS Brera Sep Lucio Chiappetti IASF MI 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 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 X-rayFebruary 2005 (D1) datasetSWIREOptical X-rayJuly 2005 (W1) datasetSWIREOptical

where are we on the sky LSS Brera Sep Lucio Chiappetti IASF MI

More numerology LSS Brera Sep 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" 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" D1 W1 SWIRE

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

Identification : the past (the XMDS/VVDS 4  catalogue) (Chiappetti et al 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 Lucio Chiappetti IASF MI valid ranks 364 sources

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 Lucio Chiappetti IASF MI TBD

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 Lucio Chiappetti IASF MI

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 Lucio Chiappetti IASF MI

Oh what a mess 1322 X-ray sources get 9508 tentative counterparts after auto cleanup have a single counterpart 272 have just , 147, 42, have 3,4,5, and so on and so forth, two have 96, one has 540, and one has 912 ! LSS Brera Sep (aux) Lucio Chiappetti IASF MI 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 swire virradio 4 radio 3 12 simbad 1 ned 4 48 usno 0 1 specfup 0 1 xlssc 0 1 loto no nulls w/ nulls 3 multiple components of VIRMOS1.4GHz J , also in NED,single in SIMBAD, also “Leiden” radio source is multiple, NED has also an NVSS : all far, 8” to 19”

space for title space for text LSS Brera Sep Lucio Chiappetti IASF MI