Properties of AM stars in the Geneva photometric system

Astronomy and Astrophysics – Astrophysics

Scientific paper

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A Stars, Astronomical Photometry, Metallic Stars, Stellar Magnitude, Astrometry, Astronomical Catalogs, Stellar Rotation

Scientific paper

On the basis of Am stars belonging to the Curchod and Hauck (1979) catalogue of Am stars, we have investigated the properties of these stars in the Geneva system. We give firstly a table containing the observed photometric data and the data we can derive: Mυ and Δm2, the metallicity parameter. The metallicity is more important for the cooler Am stars than for the hotter, while - as already remarked by other authors - the metallicity decreases when rotational velocity increases. Other stars for which Δm2 can also be important are reviewed.

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