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2006MNRAS.366.1520B - Mon. Not. R. Astron. Soc., 366, 1520-1528 (2006/March-2)
The evolutionary status of the white dwarf companion of the binary pulsar PSR J1713+0747.
BENVENUTO O.G., ROHRMANN R.D. and DE VITO M.A.
Abstract (from CDS):
We compare the structure of the resulting WDs with the characteristic age of PSR J1713+0747 finding a nice agreement with observations by Lundgren et al. especially for the case of a donor star with Z= 0.010. This result indicates that, at least for the purposes of this paper, the evolution of this kind of binary system is fairly well understood.
The models predict that, due to diffusion, the atmosphere of the white dwarf is an almost hydrogen-pure one. We find that such structures are unable to account for the colours measured by Lundgren et al. within their error bars. Thus, in spite of the very good agreement of the model with the main characteristics of the system, we find that some discrepancies in the WD emergent radiation remain to be explained.
Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS
Journal keyword(s): binaries: general - stars: evolution - stars: white dwarfs
Simbad objects: 3
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