Spectral Analysis in the Virtual Observatory

Details Spectral Analysis in the Virtual Observatory Spectral Analysis in the Virtual Observatory

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..442..563r&link_type=abstract

Astronomical Data Analysis Software and Systems XX. ASP Conference Proceedings, Vol. 442, proceedings of a Conference held at Se

Astronomy and Astrophysics

Astronomy

1

Scientific paper

In the German Astronomy Community Grid (GACG), a collaboration of German Astrophysical Virtual Observatory (GAVO) and AstroGrid-D, we provide the VO service TheoSSA for the access and the calculation of synthetic stellar Spectral Energy Distributions (SEDs) based on static as well as expanding non-LTE model atmospheres. However, the determination of stellar parameters within a spectral analysis is commonly still done in the "classical way", where the astronomer's experience decides the "best fit". An extension of TheoSSA will offer a service to perform an automatical classification based on pre-calculated template SEDs. This will be an option for multi-object spectroscopy. In addition, preliminary spectral analysis based on individually calculated SEDs will be possible. We present our concept and the progress in preparatory work.

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