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28 March 2024
 
  » arxiv » astro-ph/9806011

 Article overview


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
AbstractWe 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
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