Uncovering carbon burning in stars

Tumino, A. and Spitaleri, C. and La Cognata, M. and Cherubini, S. and Guardo, G. L. (2019) Uncovering carbon burning in stars. Il nuovo cimento C, 42 (2-3). pp. 1-7. ISSN 1826-9885

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Carbon burning takes place in stars at deep sub-Coulomb energies through the 12C(12C,α)20Ne and 12C(12C,p)23Na reactions. Here we report the first measurement of these reactions at the relevant energies via the Trojan Horse Method off the deuteron in 14N. In particular, the 12C+12C fusion has been measured from Ec.m.=2.7 MeV down to 0.8 MeV. This range of energies is relevant for several astrophysical scenarios, from superburst ignition to quiescent burning. The astrophysical S(E) factors reveal several resonances, which are responsible for a very large increase of the reaction rate at the relevant temperatures.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 30 Nov 2020 09:55
Last Modified: 30 Nov 2020 09:55
URI: http://eprints.bice.rm.cnr.it/id/eprint/20427

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