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| Paper: |
AADor – An Eclipsing Post Common-Envelope Binary |
| Volume: |
348, Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE |
| Page: |
233 |
| Authors: |
Rauch, T.; Werner, K. |
| Abstract: |
AADor (LB 3459) is an eclipsing, close, single-lined, post commonenvelope binary (PCEB) consisting of an sdOB primary star and an unseen secondary with an extraordinary small mass – formally a brown dwarf. The brown dwarf may have been a former planet which survived a common envelope phase and has even gained mass.
A recent determination of the components' masses from results of state-of-theart NLTE spectral analysis and subsequent comparison to evolutionary tracks shows a discrepancy between masses derived from radial-velocity and the eclipse curves. Phase-resolved high-resolution and high-SN spectroscopy was carried out with FUSE in order to investigate this problem. We present preliminary results of an ongoing NLTE spectral analysis of FUSE spectra of the primary. |
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