SIMBAD references

2007A&A...467L..29G - Astronomy and Astrophysics, volume 467, L29-32 (2007/5-4)

White dwarf masses derived from planetary nebula modelling.

GESICKI K. and ZIJLSTRA A.A.

Abstract (from CDS):

We compare the mass distribution of central stars of planetary nebulae (CSPNe) with those of their progeny, white dwarfs (WD). We use a dynamical method to measure masses with an uncertainty of 0.02M. The CSPN mass distribution is sharply peaked at 0.61M. The WD distribution peaks at lower masses (0.58M) and shows a much broader range of masses. Some of the difference can be explained if the early post-AGB evolution is faster than predicted by the Bloecker tracks. Between 30 and 50 per cent of WD may avoid the PN phase because they have too low a mass. However, the discrepancy cannot be fully resolved and WD mass distributions may have been broadened by observational or model uncertainties.

Abstract Copyright:

Journal keyword(s): planetary nebulae: general - stars: evolution - stars: white dwarfs

Simbad objects: 103

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2020.01.25-06:38:41

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