Spectroscopic Survey of δ SCT Stars

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

The methods used to derive effective temperatures, projected rotational velocities and surface gravities of a sample of low and high-amplitude δ Sct stars are presented here. Effective temperatures were derived using Hα and Hβ line profiles whereas rotational velocities were calculated following the method described in Solano & Fernley (1997). Surface gravities were obtained using Hipparcos parallaxes and evolutionary models (Claret 1995). The results of this analysis will be published in a subsequent paper (Solano & Pintado 1999).

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