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| Paper: |
The Boron Isotopic Ratio in HD 76932 |
| Volume: |
154, Cool Stars, Stellar Systems and the Sun: Tenth Cambridge Workshop |
| Page: |
967 |
| Authors: |
Rebull, Luisa; Duncan, Douglas; Johansson, Sveneric; Thorburn, Julie; Schramm, David; Fields, Brian |
| Abstract: |
Data in the lambda2090 B region of HD 76932 were obtained using the HST GHRS echelle at a resolution of 90,000. This wavelength region has been previously identified as a likely candidate for observing the 11B/10B isotopic splitting (Johansson et al. 1993). However, data presented here reveal that the B line in question is blended with unknown stellar absorption feature(s), making an unambiguous detection of the isotopic ratio impossible. A detailed analysis of the line shape and relative wavelength accuracies is presented. The constraints that can be placed on the isotopic ratio based on these data are also discussed. |
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