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Quality Control for Theoretical Data in the Virtual Observatory: Establishing Benchmark Tests for Synthetic Spectra
Thomas Rauch, Ellen Ringat
The Virtual Observatory (VO) provides access to both, data and theory. Quality control is a general problem and the VO user needs partly some experience to judge the reliability of…
Spectral Analysis via the Virtual Observatory: The Service Theossa
Ellen Ringat, Thomas Rauch, Klaus Werner
In the framework of the Virtual Observatory, the newly developed service TheoSSA provides access to theoretical stellar spectral-energy distributions. In a pilot phase, this servic…
Metal-Abundance Peculiarities in the sdOB Star EC11481-2303: A Progress Report
Ellen Ringat, Thomas Rauch
Spectral analyses of extreme horizontal branch (EHB) stars indicate a trend to supersolar heavy-metal abundances that is increasing with effective temperature. The sdOB EC11481-230…
Recent Investigations on AA Doradus
Thomas Rauch
AA Dor is an eclipsing, post common-envelope binary with an sdOB-type primary and an unseen low-mass secondary, believed to be a brown dwarf. Eleven years ago, a NLTE spectral anal…
White Dwarf Model Atmospheres: Synthetic Spectra for Super Soft Sources
Thomas Rauch
The Tübingen NLTE Model-Atmosphere Package (TMAP) calculates fully metal-line blanketed white dwarf model atmospheres and spectral energy distributions (SEDs) at a high level of so…
A 3D Photoionization Model of the Extreme Planetary Nebula NGC 6302
Nicholas J. Wright, Michael J. Barlow, Barbara Ercolano +1
We present a 3D photoionization model of the PN NGC 6302, one of the most complex objects of its kind. Our Mocassin model is composed of an extremely dense circumstellar disk and a…