Cool objects: From SED fitting to age estimation

Details Cool objects: From SED fitting to age estimation Cool objects: From SED fitting to age estimation

2007-04-20

arxiv.org/abs/0704.2681v1

Astronomy and Astrophysics

Astrophysics

Contribution to Astronomical Spectroscopy and the Virtual Observatory

Scientific paper

The physical properties of almost any kind of astronomical object can be derived by fitting synthetic spectra or photometry extracted from theoretical models to observational data. This process usually involves working with multiwavelength data, which is one of the cornerstones of the VO philosophy. From this kind of studies, when combining with theoretical isochrones one can even estimate ages. We present here the results obtained from a code designed to perform chi^2 tests to both spectroscopic models (or the associated synthetic photometry) and combinations of blackbodies (including modified blackbodies). Some steps in this process can already be done in a VO environment, and the rest are in the process of development. We must note that this kind of studies in star forming regions, clusters, etc. produce a huge amount of data, very tedious to analyze using the traditional methodology. This make them excellent examples where to apply the VO capabilities.

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