1. A Virtual environment on
X-ray clusters
R.Sadat & A.Blanchard
BAX
PNC

2. BAX , Information on clusters , Tools for retrieving information
, Data from numerical simulations
, Tools for data analysis on (X-ray) clusters
, Education and public outreach

3. Clusters are complex ... Challenge for the VO! Multiwavelength data:
Extended objects, not necessarily well defined...
Multiwavelength data:
optical, IR, UV, X-ray, mm, radio, Gamma,...
Several components: stars, gas, metals, dark matter
Challenge for the VO!

4. BAX Phase I , Start simple: X-ray clusters , “Data” from literature
, Basic data + Bibliographic + Keywords

5. Content of the database Basic data Complementary information
Cluster's coordinates (RA, DEC) and redshift z retrieve from existing
database (NED, ADS,CDS)
Selected published observational measurements: the X-ray flux (Fx),
the X-ray luminosity (Lx) and the X-ray temperature (Tx)
Complementary information
Existing published data
Keywords attached to bibliographical references or measurement
for query on clusters that meet relatively complex selection criteria,
or/and specified either by positions or by the observational
measurements.

6. How BAX operates - Display the ouput as
Display the basic data:
(RA,DEC,z,Fx,Lx,Tx)
on requested cluster(s)
Acces to all measurements and/or
biblography
- Display the ouput as
a list of bibliographic references
- www link on each selected
bibliographic reference
Display all the available measurements
on requested cluster(s)
Display the list of references
wiith the www link

7. BAX

8. BAX Phase II : explicitly interfaced to the VO
, Less simple: all data on clusters including
images, spectra, ...
, Data from existing database
, Tools for on-the-fly (re-)analysis