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

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

2001-04-08

arxiv.org/abs/astro-ph/0104136v1

Astronomy and Astrophysics

Astrophysics

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

Scientific paper

10.1086/321130

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.

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