The Observed Trend of Boron and Oxygen in Field Stars of the Disk

Abstract

Oxygen abundances are derived in a sample of 13 field F and G dwarfs and subgiants with metallicities in the range of -0.75 < [Fe/H] < +0.15. This is the same sample of stars for which boron abundances have been derived earlier from archived spectra obtained with the Hubble Space Telescope. In a log-log comparison of the B versus the O abundances, a slope of m(BO)=1.39 is found, indicating that in the disk, the abundance of B relative to O is intermediate between primary and secondary production (hybrid behavior). This relation of B versus O for disk stars is compared to the same relation for halo stars.

14 pages, 3 figures, 1 table. In press to The Astronomical Journal (July 2001)

References in corpus (2)

• Oxygen Abundances in Two Metal-Poor Subgiants from the Analysis of the 6300 A Forbidden O I Line
• Non-LTE Abundances and Consequences for the Evolution of the alpha elements in the Galaxy

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