Oscillations of BT CANCRI in the Praesepe cluster.

Details Oscillations of BT CANCRI in the Praesepe cluster. Oscillations of BT CANCRI in the Praesepe cluster.

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...325..559f&link_type=abstract

Astronomy and Astrophysics, v.325, p.559-562

Astronomy and Astrophysics

Astrophysics

3

Stars: Oscillations, Stars: {Delta Sct, Stars: Individual: Bt Cnc (Hd 73575)

Scientific paper

CCD observations in Johnson B of BT Cancri = HD 73575, the brightest δ Scuti variable in the Praesepe cluster, obtained on three nights in February 1994 are described. Using least squares Fourier decomposition, two modes of oscillation frequencies 9.783 and 7.005c/d and amplitudes of 18.0 and 9.9mmag, respectively, are determined. Comparison with data from the literature indicate that BT Cnc may show secular variations in the oscillation spectrum.

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