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Chemical abundance analysis of Kapteyn's Star
Monthly Notices of the Royal Astronomical Society, 2004We report spectral chemical abundances for 12 elements in Kapteyn's Star (HD 33793), a subdwarf M star. We use stellar temperature and gravity parameters derived using the recent interferometric measurement of its radius. We find [Fe/H] = -1.13 ± 0.01, [Ti/H] = -0.90 ± 0.03, and a weighted mean metallicity [M/H] = -0.98 ± 0.10, where the uncertainties ...
Vincent M. Woolf, George Wallerstein
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Chemical Abundances in Old Populations
1992Preliminary single-burst population synthesis models are presented for weak and strong spectral features as a function of metallicity for old populations. Models agree with published globular cluster observations as well as theoretical calibrations. For small ellipticals, the galaxies and model predictions agree well in all indices.
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Chemical Abundances and Galaxy Evolution
1984The chemical abundance characteristics of two comparatively structurally simple classes of galaxies, the ellipticals and irregulars, are briefly reviewed. Neither of these types of galaxies have properties which are fully consistent with the quantitative predictions of basic chemical evolution models. Possible sources for discrepancies are discussed in
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
exaly
Multidisciplinary standards of care and recent progress in pancreatic ductal adenocarcinoma
Ca-A Cancer Journal for Clinicians, 2020Aaron J Grossberg +2 more
exaly