α Cir pulsation frequencies extracted from BRITE data.
Notes. For the red BRITE data (≈Johnson R), we fixed f1 to the best-fit value (in parentheses) from the blue BRITE data (≈Johnson B) since the pulsation amplitude is larger in blue and has higher significance, despite the larger noise level in blue. The last column lists the spectral significance derived with SigSpec. Uncertainties are calculated via Monte Carlo simulations implemented in Period04. The reference for WIRE (≈Johnson V) is Table 3 of Bruntt et al. (2009).
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