SIMBAD references

1998A&A...340..149A - Astronomy and Astrophysics, volume 340, 149-159 (1998/12-1)

Pulsation, binarity and close frequency spacing in δ Scuti stars: BQ and BW Cancri. Results of the STEPHI VI campaign in Praesepe cluster.

ALVAREZ M., HERNANDEZ M.M., MICHEL E., JIANG S.Y., BELMONTE J.A., CHEVRETON M., MASSACRIER G., LIU Y.Y., LI Z.P., GOUPIL M.J., ROCA CORTES T., MANGENEY A., DOLEZ N., VALTIER J.-C., VIDAL I., SPERL M. and TALON S.

Abstract (from CDS):

New pulsation modes in two δ Scuti stars of Praesepe cluster, BQ and BW Cnc, have been detected during the STEPHI VI campaign in 1995. In particular, 3 frequencies for BQ Cnc and 9 frequencies for BW Cnc have been found above a 99% confidence level. The possibility of the presence of a g-mode present in BQ Cnc is discussed, considering its binarity. The effect of mutual interference between very close detected frequencies in BW Cnc during the observations, is also considered. This last effect reveals the necessity of long-period observing runs, in order to avoid its influence in the final number of detected modes. In such situation, studies of secular amplitude changes can be strongly affected.

Abstract Copyright: ∼

Journal keyword(s): stars: oscillations - stars: variables: δSct - stars: individual: BQ Cnc - stars: individual: BW Cnc

Simbad objects: 15

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