Thallium in the solar atmosphere |
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| Authors: | D L Lambert E A Mallia G Smith |
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| Institution: | (1) Department of Astronomy, University of Texas, Austin, Texas, U.S.A.;(2) Department of Astrophysics, University of Oxford, Oxford, England |
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| Abstract: | Umbral spectra are shown to contain an absorption feature attributable to the Tl i transition 6p
2
P°3/2–7s
2
S
1/2 at 5350 Å. Analysis of the umbral spectrum suggests a solar abundance in the 0.72< log N(Tl)T<1.10 on the standard scale log N(H) = 12.00. Unidentified blends limit the accuracy of the abundance determination. |
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