Evolution of central stars of planetary nebulae towards the crystallizing white dwarf stage |
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| Authors: | U De Angelis L De Cesare A Forlani G Platania |
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| Institution: | 1. Astronomical Observatory, Capodimonte, Naples, Italy
2. Dept. of Physics, the University, Naples, Italy
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| Abstract: | The evolution of the central stars of planetary nebulae, interpreted as hot white dwarfs with liquefying cores, towards the cold white dwarf stage is discussed and theoretical (non-computational) evolutionary tracks are built for such central stars as they cool towards the crystallizing region. The conclusions seem to hint a picture in which crystalline white dwarfs can be looked at as final stages of the central stars of planetary nebulae. |
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