Spectral Analysis within the Virtual Observatory: The GAVO Service TheoSSA

TL;DR

This paper discusses the GAVO service TheoSSA, which provides spectral energy distributions for hot, compact stars, demonstrating its effectiveness through a case study of AA Doradus.

Contribution

It introduces the TheoSSA service within the Virtual Observatory framework, enabling spectral analysis using TMAP models for hot stars.

Findings

TheoSSA successfully reproduces spectral analysis results for AA Doradus.

The service demonstrates the potential of Virtual Observatory tools in stellar spectroscopy.

Comparison with classical methods validates TheoSSA's accuracy.

Abstract

In the last decade, numerous Virtual Observatory organizations were established. One of these is the German Astrophysical Virtual Observatory (GAVO) that e.g. provides access to spectral energy distributions via the service TheoSSA. In a pilot phase, these are based on the Tuebingen NLTE Model-Atmosphere Package (TMAP) and suitable for hot, compact stars. We demonstrate the power of TheoSSA in an application to the sdOB primary of AA Doradus by comparison with a "classical" spectral analysis.