2007
DOI: 10.1051/0004-6361:20078024
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Does convective core overshooting depend on stellar mass?

Abstract: Aims. We have selected 13 double-line eclipsing binary systems (DLEBS), strategically positioned in the HR diagram, to infer the mass dependence of the core overshooting parameter α ov . Methods. In order to compare the data from these DLEBS with the theoretical predictions we computed four grids of evolutionary stellar models with variable amounts of core overshooting (α ov = 0.0, 0.2, 0.4, and 0.6) in addition to those previously computed. In some particular cases specific models were computed for the precis… Show more

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Cited by 115 publications
(124 citation statements)
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“…The grids of stellar models used here are based on the code described in detail in Claret (2004). The convective core overshooting is introduced by means of an excess distance beyond the classical convective border (see also Claret 2007). This distance is defined as d over = α ov H p , where H p is the pressure scale height taken at the edge of the convective core given by Schwarzschild's criterion and α ov = 0.20 is a free parameter.…”
Section: Discussionmentioning
confidence: 99%
“…The grids of stellar models used here are based on the code described in detail in Claret (2004). The convective core overshooting is introduced by means of an excess distance beyond the classical convective border (see also Claret 2007). This distance is defined as d over = α ov H p , where H p is the pressure scale height taken at the edge of the convective core given by Schwarzschild's criterion and α ov = 0.20 is a free parameter.…”
Section: Discussionmentioning
confidence: 99%
“…Ribas et al (2000) used eclipsing binaries to show that α increases with mass, but Claret (2007) found that α = 0.2 could reproduce correctly the properties of 3 < M < 30 M stars. Using asteroseismology, Briquet et al (2007) determined α = 0.44 ± 0.07 for the B2IV star θ Oph and Briquet et al (2011) obtained α = 0.1 ± 0.05 for the O9V star HD 46202.…”
Section: The Main Sequence Widthmentioning
confidence: 99%
“…still widely debated point (see e.g. Claret 2007;Brocato et al 2003;Barmina et al 2002;Chiosi et al 1992, and references therein).…”
Section: Overshootingmentioning
confidence: 99%