DRAFT: IVOA ObsCore Extension and Discovery of High Energy Astrophysics Data Note

Janet Evans janet at cfa.harvard.edu
Wed May 20 18:56:18 CEST 2026


Dear IVOA colleagues,

The High Energy Interest Group (HEIG) has been working on an "IVOA Obscore Extension and Discovery of High Energy Data" Note over the past year.  A mature Draft is attached below and available for your review.

The HEIG Note describes several changes to the Obscore standard and the addition of an HE Obscore extension that will enable robust querying of High Energy data in the IVOA.

HEIG team members have worked over the past year to define use cases, understand the commonalities and differences in high-energy data across projects, update and define Obscore keywords, and collaborate with the Semantics group on vocabularies and UCDs.   Here’s a link to our Interest group page:  https://wiki.ivoa.net/twiki/bin/view/IVOA/HEGroup

Now it’s your turn to provide us with input.  Please review the document and attend the Obscore Plenary scheduled for the Interop in June.  We will present several reference implementations and host a Panel discussion with the Radio group, which has a similar document prepared.   

During the Interop week, we are happy to meet with projects that want to learn more, think they have a use case not covered, or have feedback useful to this effort.

For the entire team,
-Janet & Bruno



Janet Evans | Software Development Manager | Chandra X-ray Center
Center for Astrophysics | Harvard & Smithsonian
Office: (617) 495-7160 
60 Garden Street | MS 81 | Cambridge, MA 02138



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