One- and multi-component models of the upper photosphere based on molecular spectra |
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| Authors: | Mount George H. Linsky Jeffrey L. |
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| Affiliation: | 1. Joint Institute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, 80302, Boulder, Colo., U.S.A.
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| Abstract: | We have obtained center-to-limb photoelectric spectra of the CN(1,1) B-X bandhead region λ3868–3872 Å at Kitt Peak National Observatory. From these spectra and a detailed analysis of the formation of the CN (1, 1) spectrum we derive a best-fit upper photospheric model differing from the HSRA which is consistent with our previous CN(0, 0) λ3883 spectra. We derive a solar carbon abundance of log A c = 8.30 ± 0.10 compared to the HSRA value of log A c = 8.55 ± 0.10. In addition we specify the regions of formation for the CN(0, 0) λ3883.35 and CN(1, 1) λ 3871.38 bandheads at disc center and limb. |
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