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date	2003.08.27.12.33.30;	author MarkusDolensky;	state Exp;
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@Status Report by C. Mullis, Aug. 12, 2003
@
text
@Subject:
status report attached
From:
Chris Mullis <cmullis@@eso.org>
Date:
Tue, 12 Aug 2003 15:16:10 +0200 (MEST)
To:
Markus Dolensky <mdolensk@@eso.org>


----------------------------------------------------------------------------
   *    Dr. Christopher Mullis              office: 506
 *E S*  European Southern Observatory       e-mail: cmullis@@eso.org
   O    Karl-Schwarzschild-Str. 2           tel.:   +49 89 3200 6289
   *    85748 Garching                      fax:    +49 89 3200 6320
        Germany                             http://www.eso.org/~cmullis
----------------------------------------------------------------------------



--------------------------------------------------------------------------
                    Maximizing the Joint Use of the
            ESO Science Archive and the XMM/CXO X-ray Archives

			STATUS REPORT -- 12 August 2003
				         C. R. Mullis
--------------------------------------------------------------------------


1) Cross correlation of XMM/CXO data archives with ESO Science Archive

- Procedures in place to poll the XMM/CXO archives for lists of publicly
  available datasets 
	    ===> X-ray field positions (RA,DEC,etc)

		    circa May 2003
		    ...684 datasets (unique RA,DEC) in XMM archive
	            ...433 datasets (unique RA,DEC) in Chandra archive
		 
- Procedures developed to cross-correlate the positions of the X-ray 
  datasets (RA,DEC) with the ESO archive via QUERATOR  
	    ===> jointly observed ESO+X-ray field positions

Issues:
- completeness of QUERATOR 
    ...currently includes WFI,FORS1,FORS2
    ...would be good to have EMMI, SUSI, and SOFI b/c many
       survey programs are executed with these instruments


2) ESO + XMM/CXO Interface

Present work has focused on data flow, data reduction, source
detection/characterization and database construction (i.e. the
fundamental elements of the ESO/X-ray interface):

- Developed visualization tools (e.g useful to for field selection
  in archival science programs)
	 plot/filter data in celestial coordinates 
	 plot/filter data in Galactic coordinates

- Procedures developed to automatically transfer X-ray data from
  remote archives to local cache.

- Testing XASSIST top-level data reduction package 
  (handles processing of both XMM and CXO data)
	 software installed and operating 
	 identified shortcomings in XMM procedures and
	    interacted with software developer to fix
	 assessment of output quality continues...

- Procedures developed to merge X-ray source lists into master
  database	     

- Developing post-processing procedures...
	 generate X-ray images from photon lists	
	 adaptive smooth X-ray images
         create combined X-ray + optical images

Yet to be addressed is format of the actual ESO/X-ray interace.  
Potential elements include:
    - "clean" X-ray images for ESO observations for immediate visualization
      of optical+X-ray view 
    - X-ray source database for ESO observations 
         (RA,DEC, X-ray attributes, etc)

Issues:
- access to pipelined ESO images (EIS?)
- actual ESO/X-ray interface

      
3) Science Demonstration

- Existing infrastructure has been tested and used in support of a
  search for galaxy clusters at z>1.
     ...candidates selected based on extended X-ray emission in XMM data
     ...X-ray + DSS imaging used to reject nearby systems z < 0.5
     ...ulimately DSS will be replaced with ESO imaging

Issues:
- need actual ESO/X-ray interface to "real" demo/test
@