^14N(p,γ)^15O and the Age of the Galaxy

Details ^14N(p,γ)^15O and the Age of the Galaxy ^14N(p,γ)^15O and the Age of the Galaxy

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aps..apr.k2002c&link_type=abstract

American Physical Society, APS April Meeting, April 16-19, 2005, abstract #K2.002

Astronomy and Astrophysics

Astrophysics

Scientific paper

The carbon-nitrogen (CN) cycle is the energy source of choice at some point in the life of every star and the power generated by the CN-cycle is determined by the rate of its slowest reaction, namely ^14N(p,γ)^15O. Recent experiments have shown that the rate of this reaction is about a factor of 2 less than previously thought for main-sequence and red-giant stars. The astrophysical implications of this are still being explored. However, one clear consequence is that the ages of globular clusters have to be revised upwards by about a billion years. This talk will focus on the connection between the ^14N(p,γ)^15O reaction, globular clusters and the age of the galaxy.

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