HR1328: a cool edge ``Slowly Pulsating B Star''

E. Chapellier - H. Sadsaoud - J.C. Valtier - P. Mathias - R. Garrido - M. Alvarez - J.P. Sareyan - J. Chauville - J.M. Le Contel

Received May 31; accepted July 17, 1995

Abstract:

We report on the discovery of a photometric variability (in Strömgren u and v filters) of HR 1328, a B8 main-sequence star. Two periods are easily derived, of the order of 0.61 d and 0.77 d. From the position of this star in the HR diagram together with other pulsational characteristics, HR 1328 can be classified as a Slowly Pulsating B star (SPB). Although these stars are found to oscillate in high-order g-modes the relatively short pulsation periods of HR 1328 point towards lower-order g-modes in this case.

Keywords: Stars: variables: other -- Stars: oscillations -- Stars: individual: HR1328

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