Frémat, Y. ; Lampens, P. ; Van Cauteren, P. ; Robertson, C. W.

published in Memorie della Societa Astronomica Italiana, 77, pp. 174 (2006)

Abstract: We obtained high-resolution spectroscopic data for 33 bright (V 8) A-type HIPPARCOS programme stars at the ``Observatoire de Haute-Provence'' (OHP) in December 2004. All our targets show some indication of radial velocity variability (Grenier et al, 1999), are located in or near the lower part of the Cepheid instability strip, and are poorly studied objects. In this contribution, we present the new data of the most interesting programme stars and we derive a physical interpretation for their variable nature.

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