The Lower Part of the Instability Strip: Evolutionary Status of Delta Scuti Stars

Details The Lower Part of the Instability Strip: Evolutionary Status of Delta Scuti Stars The Lower Part of the Instability Strip: Evolutionary Status of Delta Scuti Stars

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997esasp.402..363l&link_type=abstract

Proceedings of the ESA Symposium `Hipparcos - Venice '97', 13-16 May, Venice, Italy, ESA SP-402 (July 1997), p. 363-366

Computer Science

5

Scientific paper

The accurate determination of distances from Hipparcos allows to compare the position in the HR diagram of constant, known variable and chemically peculiar stars in the lower part of the instability strip, including the available new information on variability. Distances are larger and luminosities are slightly higher than those derived from previous calibrations. Masses are then higher. Consequences on mode identification and internal structure are discussed. It is also shown that there is no segregation between the different types in the HR diagram.

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