IVOA Catalogue Data Model group Catalogue Source Data

IVOA Catalogue Data Model group Catalogue Source Data Model Catalogue DM Subgroup Kyoto IVOA Interop May 2005 Pedro OSUNA European Space Astronomy Centre

Source Catalogue History q From Poona 2004 IVOA presentation: · · […] Go for Source Catalogue Data Model, and see how it works. Then, review and decide […] An example Use Case (M. Louys): Is the source in this catalogue the same as the one in this other catalogue? (Cross match) (Note: Sky. Node? Discussion on specific “Column” Names? Standard DM for Catalogues? Or better, describe specific columns in tables? ) […] q For today’s presentation: Source object within the Catalogue Data Model: Inputs by ESA-VO (Matteo Guainazzi et al. ): Catalogue DM Subgroup Kyoto IVOA Interop May 2005 Pedro OSUNA European Space Astronomy Centre

Source Catalogue Model proposal Catalogue DM Subgroup Kyoto IVOA Interop May 2005 Pedro OSUNA European Space Astronomy Centre

Inputs received on proposed model • Acknowledge Arnold’s inputs on correspondence with STC. Will adapt consequently after some clarifications. • Some merging info from Ed and Brian • Lacking input from other Data Model subgroups • Easier to introduce needed attributes independently, but prefer to use already available Data Models. Work towards homogenization of models. Catalogue DM Subgroup Kyoto IVOA Interop May 2005 Pedro OSUNA European Space Astronomy Centre

VO-general issues related • Cross-match Use case: • Should cross-matches use the Source DM in general? VO would benefit from VOQL queries like: Select Source. IAUName, Source. STC. Position. RA, Source. STC. Position. DEC from Catalogue a, Catalogue b where XMATCH(a, b, 3. 5) XMATXH should be an implementation-independent function • How are current cross-match services working? CDS? Sky. Node? • Should they use the Source DM? Catalogue DM Subgroup Kyoto IVOA Interop May 2005 Pedro OSUNA European Space Astronomy Centre

Proposal for Improvement/interoperability • Have a meeting with, at least, the following chairmans: • ADQL/Sky. Node • VOTable • Data Model Catalogue DM Subgroup Kyoto IVOA Interop May 2005 Pedro OSUNA European Space Astronomy Centre

Achieved/not-achieved+deliverables • From Poona 2004: • Go for Source Catalogue DM, then review and decide Achieved • Create dm-catalog@ivoa. net Achieved • For everyone: Send inputs to Catalog(ue) DM subgroup Not achieved • Requirements from other WGs Not achieved • First deliverable: Catalogue DM 0. 5 end of year. Catalogue DM Subgroup Kyoto IVOA Interop May 2005 Pedro OSUNA European Space Astronomy Centre