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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PublicationAcoustic oscillations in the K2 III star Arcturus
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PublicationAn Intermediate-age Alpha-rich Galactic Population in K2
We explore the relationships between the chemistry, ages, and locations of stars in the Galaxy using asteroseismic data from the K2 mission and spectroscopic...
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PublicationApplication of the infrared flux method to globular cluster stars. The M 3 giant branch
The authors present optical and near infrared photometry, covering from 0.36 to 2.3 microns, for a wide sample of red giant stars in the globular cluster M3...
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PublicationCCD BVR photometry of the open cluster IC 1311
Six CCD frames for two fields in the area of the rich, presumably old, and unstudied open cluster IC 1311 have been obtained in the BVR bands. The photometric...
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PublicationCCD photometry of resolved dwarf irregular galaxies. II - DDO 187. III - GR 8
CCD photometry of resolved dwarf irregular galaxies was obtained with the 4-m Cerro Tololo Interamerican Observatory telescope in February 1985. BV data from 77...
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PublicationChemical abundances and masses of the haloes around the planetary nebulae NGC 6543 and NGC 6826
Spatial resolved low resolution spectroscopy of the haloes around the planetary nebulae NGC 6543 and NGC 6826 were conducted. The results imply that the...
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PublicationConstraints to the mass loss rate of globular cluster red giants
The expected mass loss rates from horizontal branch (HB) and red giant branch models are investigated. The expected dependence of those rates on luminosity...
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PublicationEmpirical colour-metallicity relations for Population II giant stars
The published J, H, and K band photometry of Frogel et al. (1983) for a sample of over 350 red giants in 33 galactic globular clusters, which covers the...
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PublicationGalactic evolution of the light-element isotopes
The galactic evolution of the abundances of the light-element isotopes (6Li, 7Li, 9Be, 10B, and 11B) is re-examined in view of recent measurements of the 7Li...