Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90.1349b&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 90, July 1985, p. 1349-1353.
Astronomy and Astrophysics
Astronomy
14
Giant Stars, Infrared Stars, K Stars, Metallic Stars, Stellar Spectra, Line Spectra, Near Infrared Radiation, Spectral Resolution
Scientific paper
Low resolution image-dissector scans have been used to select a sample of nine field K giants with line strengths ranging from normal to significantly stronger than normal. The five strongest-lined objects are of comparable line strength to Mu Leo. High-resolution near-infrared Reticon spectra have been obtained for al stars. Earlier results that, in the near infrared, essentially all lines stronger than a few mA are significantly enhanced in the SMR stars relative to solar-abundance stars of the same (V-K) color. Based on this sample, there appears to be no significant discrepancy between low-resolution metallicity indicators and high-resolution line strengths for field K giants. Earlier studies to the contrary were based on high-dispersion spectra obtained at shorter wavelengths, where line-blending problems are more severe, especially for the 'super-metal-rich' (SMR) stars.
Bond Howard E.
Burstein David
Faber Sandra M.
Luck Earle R.
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