Physics
Scientific paper
Aug 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997esasp.402..245n&link_type=abstract
Proceedings of the ESA Symposium `Hipparcos - Venice '97', 13-16 May, Venice, Italy, ESA SP-402 (July 1997), p. 245-250
Physics
2
Scientific paper
A photometric criterion (the m parameter) deduced from the Geneva 7-colour photometry provides good Am-candidates. In the classical magnitude versus colour diagrams of clusters, the Am-stars tend to lie above the main sequence. The following points will be examined: (a) the validity of the photometric criterion according to recent spectral classifications; (b) the evolutive stage of field Am-type stars from their absolute magnitude and binarity.
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