Lampens, P. ; Strigachev, A. ; Kim, S.-L. ; Rodriguez, E. ; Lopez-Gonzales, M. J. ; Vidal-Sainz, J. ; Mkrtichian, D. ; Litvinenko, D. ; van Cauteren, P. ; Wils, P.

published in Communications in Asteroseismology, 157, pp. 328-329 (2008)

Abstract: We present the latest results of a multisite photometric campaign carried out in 2004-2007 on the Algol-type eclipsing binary system CT Her, the primary component of which is a δ Scuti- type pulsator with a main pulsation period of only 27 min. CT Her belongs to the new class of oscillating Algol-type binary systems. We collected enough data in two passbands to perform a modelling of the light curves using PHOEBE and detected up to 7 significant pulsation frequencies in the frequency range between 45-53 d-1 in the B-residual data (independent of the adopted solution for the binary model). The remaining standard deviation of the ca. 7500 B-residuals spread over 4 years is 5.0 mmag.

Links: link