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| Paper: |
FUSE Spectroscopy of the DAO-type Central Star LSV+4621: Looking for the Photosphere in the Sea of Interstellar Absorption |
| Volume: |
372, 15th European Workshop on White Dwarfs |
| Page: |
197 |
| Authors: |
Ziegler, M.; Rauch, T.; Werner, K.; Kruk, J.W.; Oliveira, C. |
| Abstract: |
The far-ultraviolet spectrum of the DAO white dwarf LSV+46-21, the exciting star of the possible planetary nebula Sh 2−216, is strongly contaminated by absorption features from the interstellar medium (ISM). For an ongoing spectral analysis, we aim to extract the pure photospheric spectrum in order to identify and model metal lines of species which are not detectable in the near-ultraviolet wavelength range. We have modelled the interstellar absorption precisely and considered it for the simulation of the FUSE observation. A state-of-the-art NLTE model-atmosphere spectrum which includes 16 elements is combined with the ISM absorption and then compared with the FUSE spectrum. |
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