Work

Criticism of recent calculations of common envelope ejection

Year: 2003

Type: article

Abstract: We re-examine a recent claim made by Han et al. that the ionization energy in the envelope has to be included in the ejection criterion of common envelopes. In particular, we argue that: (i) they include a mass-loss rate prior to the onset of the common envelope that is too low; (ii) they do not include the energy radiated by the accreting white dwarf companion, as well as that emitted by the core of the giant star; and (iii) as argued by one of us previously, the opacity in the envelope is too low for the efficient usage of the ionization energy.

Source: Monthly Notices of the Royal Astronomical Society

DOI: 10.1046/j.1365-8711.2003.06689.x

Authors: Noam Soker, Amos Harpaz

Institution: Oranim Academic College of Education

Language: English

Topic: Stellar, planetary, and galactic studies

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funder: Israel Science Foundation

OpenAlex ID: W2137565973