The effect of nuclear reaction rates and convective mixing on the evolution of a 6M{sub ȯ} star

Journal Article · Fri May 09 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4875329· OSTI ID:22280407

Halabi, Ghina M., E-mail: [e-mail] ^[1]

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1. American University of Beirut, Department of Physics, P.O. Box 11-0236, Riad El-Solh, Beirut (Lebanon)

We present the evolution of a 6M{sub ȯ} star, of solar-like initial metallicity, and investigate the effects of key nuclear reaction rates, as well as the treatment of the convective mixing on its evolution along the Cepheid instability strip. In particular, we study the effect of recent estimates of the {sup 14}N(p,γ){sup 15}O reaction on the formation and extension of the blue loop during core helium burning. We also investigate the effects induced on this blue loop by the adoption of non-standard convective mixing prescriptions, as well as the implications of modifying the Mixing Length Theory.

• OSTI ID: 22280407
• Journal Information: AIP Conference Proceedings, Vol. 1595, Issue 1; Conference: 7. European summer school on experimental nuclear astrophysics, Santa Tecla, Sicily (Italy), 15-17 Sep 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASTROPHYSICS
HELIUM BURNING
MIXING
NITROGEN 14 TARGET
OXYGEN 15
PROTON REACTIONS
STARS