Institut für Astronomie und Astrophysik Abteilung Astronomie Sand 1, D-72076 Tübingen, Germany
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Preprint 07/07

GAVO Tools for the Analyses of Stars and Nebulae

Thomas Rauch

Institut für Astronomie und Astrophysik, Sand 1, 72076 Tübingen, Germany

To be published in: Astronomical Spectroscopy and the Virtual Observatory, ESAC Workshop, March 21-23, 2007

Abstract. Within the framework of the German Astrophysical Virtual Observatory (GAVO), we provide synthetic spectra, simulation software for the calculation of NLTE model atmospheres, as well as necessary atomic data. This will enable a VO user to directly compare observation and model-atmosphere spectra on three levels: The easiest and fastest way is the use of our pre-calculated flux-table grid in which one may inter- and extrapolate. For a more precise analysis of an abservation, the VO user may improve the fit to the observation by the calculation of individual model atmospheres with fine-tuned photospheric parameters via the WWW interface TMAW. The more experienced VO user may create own atomic-data files for a more detailed analysis and calculate model atmosphere and flux tables with these.
 
Key words: Stars: atmospheres; Stars: AGB and post-AGB

Preprint (324 kb PDF file including figures)

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