Astrophysical: Red giant stars

  • Publication
    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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    An 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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    Application 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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    Atmospheric Parameters and Abundances of Cool Red Giant Stars
    Understanding the atmospheric parameters of stars on the top of the RGB is essential to reveal the chemical composition of the Milky Way, as they can be used to...
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    CCD 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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    CCD 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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    Chemical 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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    Constraints 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...
  • Publication
    Empirical 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...