The services presented here implement a Virtual Observatory (VO) compliant interface to the MACHO data, and comply with the relevant International Virtual Observatory Alliance (IVOA) standards.

There is extensive documentation available via the "User Guide" and "How To..." links above. For additional information regarding the VO/IVOA and related tools and services, we refer you to the following:

The International Virtual Observatory Alliance
The TOPCAT VO Tool

Note: The search forms linked to above provide a simple form-based interface to these services. Search results are fomatted according to the relevant service standards, typically as a VOTable (ie: XML) document. Many browsers will display a message indicating "no style information is associated with this XML document", this is not an error, this is just indicating the browser is displaying the unmodified XML as returned from the web service, and is correct behaviour.

"This paper utilizes public domain data obtained by the MACHO Project, jointly funded by the US Department of Energy through the University of California, Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48, by the National Science Foundation through the Center for Particle Astrophysics of the University of California under cooperative agreement AST-8809616, and by the Mount Stromlo and Siding Spring Observatory, part of the Australian National University."