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Formation of undermassive single white dwarfs and the influence of planets on late stellar evolution | G. Nelemans
; T.M. Tauris
; | Date: |
31 May 1998 | Journal: | A&A 335 (1998) L85-L88 | Subject: | astro-ph | Abstract: | We propose a scenario to form low-mass, single, slow rotating white dwarfs from a solar-like star accompanied by a massive planet, or a brown dwarf, in a relatively close orbit (e.g. HD 89707). Such white dwarfs were recently found by Maxted & Marsh (1998). When the solar-like star ascends the giant branch it captures the planet and the subsequent spiral-in phase expels the envelope of the giant leaving a low-mass helium white dwarf remnant. In case the planet evaporizes, or fills its own Roche-lobe, the outcome is a single undermassive white dwarf. The observed distribution of planetary systems supports the applicability of this scenario. | Source: | arXiv, astro-ph/9806011 | Services: | Forum | Review | PDF | Favorites |
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