Explosive hydrogen burning of 17O in classical novae.

Published

Journal Article

We report on the observation of a new resonance at E(lab)(R)=190 keV in the 17O(p,gamma)18F reaction. The measured resonance strength amounts to omegagamma(pgamma)=(1.2+/-0.2)x10(-6) eV. With this new value, the uncertainties in the 17O(p,gamma)18F and 17O(p,alpha)14N thermonuclear reaction rates are reduced by orders of magnitude at nova temperatures. Our significantly improved reaction rates have major implications for the galactic synthesis of 17O, the stellar production of the radioisotope 18F, and the predicted oxygen isotopic ratios in nova ejecta.

Full Text

Cited Authors

  • Fox, C; Iliadis, C; Champagne, AE; Coc, A; José, J; Longland, R; Newton, J; Pollanen, J; Runkle, R

Published Date

  • August 18, 2004

Published In

Volume / Issue

  • 93 / 8

Start / End Page

  • 081102 -

PubMed ID

  • 15447168

Pubmed Central ID

  • 15447168

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.93.081102

Language

  • eng