DOI | Resolve DOI: https://doi.org/10.1086/129801 |
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Author | Search for: Cowley, Charles R.1; Search for: Aikman, G.C.L.1 |
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Affiliation | - National Research Council of Canada
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Format | Text, Article |
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Subject | peculiar stars; stellar abundances |
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Abstract | The isotopic shift of the Hg II λ3984 line is examined in the spectra of a number of strong mercury-manganese stars; the shift cannot be explained by line blending with lines of other elements in these stars, but represents real isotopic variations. An astrophysical log gf value - 1.8 is derived for λ3984, based on the Hg I λ4358 line strength in CrB and HR 1800. Elemental and (in some cases) isotopic abundances of Hg are derived using a spectrum synthesis technique; overabundances of up to 5.4 dex over the solar system over the solar system mercury abundance are found; the maximum overabundances may be temperature dependent. |
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Publication date | 1975 |
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In | |
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Language | English |
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Peer reviewed | Yes |
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NRC number | NRCC 14454 |
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NPARC number | 21275033 |
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Export citation | Export as RIS |
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Report a correction | Report a correction (opens in a new tab) |
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Record identifier | b77e5351-a9d4-400e-8cfd-312da513e4ba |
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Record created | 2015-05-05 |
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Record modified | 2020-03-13 |
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