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Preprint 10/09


Non-LTE Model Atmospheres for Supersoft X-ray Sources

T. Rauch, K. Werner

Institute for Astronomy and Astrophysics,
Kepler Center for Astro and Particle Physics,
Eberhard Karls University,
72076 Tübingen,
Germany

To be published in: Proceedings of Supersoft X-ray Sources - New Developments, ESAC, Madrid

Abstract. In the last decade, X-ray observations of hot stellar objects became available with unprecedented resolution and S/N ratio. For an adequate interpretation, fully metal-line blanketed Non-LTE model-atmospheres are necessary. The Tübingen Non-LTE Model Atmosphere Package (TMAP) can calculate such model atmospheres at a high level of sophistication.
Although TMAP is not especially designed for the calculation of spectral energy distributions (SEDs) at extreme photospheric parameters, it can be employed for the spectral analysis of burst spectra of novae like V4743 Sgr or line identifications in observations of neutron stars with low magnetic fields in low-mass X-ray binaries (LMXBs) like EXO 0748-676.
 
Key words: stars: AGB and post-AGB -- stars: individual (LSV 4621, H 1504+65, V4743 Sgr, EXO 0748-676) -- stars: novae, cataclysmic variables -- stars: white dwarfs -- X-rays: stars

Preprint (242 kb PDF file including figures)


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