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  1. No Access

    Article

    Measurement of stellar age from uranium decay

    The ages of the oldest stars in the Galaxy indicate when star formation began, and provide a minimum age for the Universe. Radioactive dating of meteoritic material1 and stars2 relies on comparing the present abu...

    R. Cayrel, V. Hill, T. C. Beers, B. Barbuy, M. Spite, F. Spite, B. Plez… in Nature (2001)

  2. No Access

    Article

    Lithium abundance at the formation of the Galaxy

    The observed abundance of lithium in population I stars (young stars)1 seems to have been stable during the past 5 × 109 yr (ref. 2). This stability has been used previously1,3 to estimate the abundance of lithiu...

    M. Spite, F. Spite in Nature (1982)

  3. No Access

    Chapter

    Advantages and Limitations of Quantitative Spectral Classification

    The measurements of spectral lines of moderate dispersion slit spectrograms for F, G and K type stars give a large quantity of information. The measurements are time-consuming in comparison with visual classif...

    F. Spite in Spectral Classification and Multicolour Photometry (1973)