The Lanthanide Elements in Stellar and Laboratory Spectra
作者： Glenn M. Wahlgren
DOI: 10.1238/PHYSICA.TOPICAL.100A00022
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摘要: The lanthanide elements (Z = 57–71) are characterized by the filling of 4f electronic subshell, which lies close in energy to 5d and 6s subshells. As a result, spectra can be quite complicated terms number optical spectral lines, some cases their hyperfine structure isotopic shifts extremely large. These characteristics have great implications for astronomical investigations. We first review stellar environments study lanthanides is important. include sun, chemically peculiar stars, oldest, most metal-deficient stars galaxy. then touch on laboratory efforts directed at improving atomic data useful analyzing spectra, particular regarding wavelengths, line strength. Special emphasis placed three these reference list analyses provided.
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