Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992natur.360..439o&link_type=abstract
Nature (ISSN 0028-0836), vol. 360, no. 6403, p. 439-442.
Astronomy and Astrophysics
Astrophysics
35
Abundance, Big Bang Cosmology, Galactic Cosmic Rays, Lithium, Nuclear Fusion, Spallation, Beryllium, Boron, Lithium Isotopes
Scientific paper
The astrophysical Li-7 abundance is considered to be largely primordial, while the Be and B abundances are thought to be due to galactic cosmic ray (GCR) spallation reactions on top of a much smaller big bang component. But GCR spallation should also produce Li-7. As a consistency check on the combination of big bang nucleosynthesis and GCR spallation, the Be and B data from a sample of hot population II stars is used to subtract from the measured Li-7 abundance an estimate of the amount generated by GCR spallation for each star in the sample, and then to add to this baseline an estimate of the metallicity-dependent augmentation of Li-7 due to spallation. The singly reduced primordial Li-7 abundance is still consistent with big bang nucleosynthesis, and a single GCR spallation model can fit the Be, B, and corrected Li-7 abundances for all the stars in the sample.
Olive Keith A.
Schramm David N.
No associations
LandOfFree
Astrophysical Li-7 as a product of big bang nucleosynthesis and galactic cosmic-ray spallation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Astrophysical Li-7 as a product of big bang nucleosynthesis and galactic cosmic-ray spallation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Astrophysical Li-7 as a product of big bang nucleosynthesis and galactic cosmic-ray spallation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1139623