Publicación
Acoustic oscillations in the K2 III star Arcturus
Simultaneous spectrometric and photometric observations have been performed on the red giant star Arcturus, in a search for radial velocity or luminosity...
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PublicaciónAn empirical colour-T(eff) calibration for G and K dwarf and subdwarf stars
Infrared observations are used to obtain effective temperatures with a 3-percent error for a sample of low main-sequence stars. The empirical calibration of...
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PublicaciónCarbon abundances and isotope ratios in 70 bright M giants
Approximate carbon abundances and C-12/C-13 isotope ratios are obtained for 70 M giant stars from intermediate-resolution spectrophotometry of the CO bands near...
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PublicaciónDetermination of bolometric fluxes for F, G and K subdwarfs
Bolometric fluxes for 118 dwarfs and subdwarfs with 4000K less than Teff less than 7000K and +0.5 less than (Fe/H) less than -3.5 are derived by integrating...
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PublicaciónHigh precision velocity observations of Arcturus using the 7699 A line of potassium
The K giant Arcturus (alpha Boo) was observed with the Birmingham double magneto-optical filter spectrometer using the GHRIL facility at the Nasmyth focus of...