Hi
We, at the Spanish VO, would like to introduce you to VOSA (VO Sed Analyzer), a web application developed using VO resources to fit observational data with theoretical models and, so, infer physical properties for the observed objects. We actually intend to give a short presentation at Baltimore about it.
In summary, it resolves objects using the VO, retrieves photometry from VO catalogues, allows the user to upload his/her own photometry too, uses theoretical stellar models from the VO to fit the observed data and find values for the effective temperature, gravity and metallicity, and then uses theoretical isochrones and evolutionary tracks from VO servers to estimate values for the mass and age of the objects.
The application is available at: http://svo.laeff.inta.es/theory/vosa
and a paper by Bayo et al, presenting it and using it for the C69 cluster is already accepted for publication in Astronomy and Astrophysics.
If you find it interesting, we invite you to try it and, please, send us any comment about it.
Carlos Rodrigo Received on 2008-09-25Z12:05:20