Explosive hydrogen burning of 17O in classical novae
| Autor: | Foix, C., Iliadis, C, Champagne, A.E., Coc, A., Jose, J., Longland, R., Newton, J., Pollanen, J., Runkle, R. |
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| Přispěvatelé: | Lorgeril, Jocelyne, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11) |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | Physical Review Letters Physical Review Letters, American Physical Society, 2004, 93, pp.081102-4 |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.17615/sbgy-n634 |
| Popis: | The explosive burning of 17O, which exhibits resonance at E Rlab = 190 keV in the 17O(p, γ) 18F reaction, was analyzed. The resonance strength was about ωγpγ =(1.2∓0.2)×10-6 eV, which revealed that uncertainities in thermonuclear reaction rates were reduced by orders of magnitude at nova temperatures. The uncertainty in 17O(p, α)18F reaction rates was found to be ≅30%. The results show that resonance in thermonuclear reaction reduced uncertainty in galactic synthesis of 17O, the stellar production of 18F, and oxygen isotopic ratios in nova ejecta. |
| Databáze: | OpenAIRE |
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