The solar boron abundance

Details The solar boron abundance The solar boron abundance

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...212l.101k&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 212, Mar. 1, 1977, p. L101-L104.

Astronomy and Astrophysics

Astrophysics

47

Abundance, Boron, Photosphere, Solar Spectra, Nuclear Fusion, Solar Atmosphere, Spallation, Spectrum Analysis

Scientific paper

Positive evidence for the presence of boron in the sun is reported, and the chemical abundance of boron in the photosphere is derived from photoelectric measurements of the solar spectrum near 2500 A obtained with a rocketborne high-resolution spectrometer. Short sections of the spectrum in the vicinities of the B I lines at 2496.772 and 2497.723 A are plotted. The photospheric boron abundance is determined primarily by analyzing the solar-center spectrum near the first of the two lines in the framework of several single-component photospheric models. The logarithmic boron abundance obtained is 2.6, with an estimated uncertainty of plus or minus 0.3 dex, on the scale where that of hydrogen is 12.0. This value is shown to be in excellent agreement with that predicted for a nucleosynthesis model in which Li, Be, and B are produced by cosmic-ray spallation.

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