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Published online by Cambridge University Press: 12 April 2016
We report monoperiodic variability for the four B-type stars HD 131120, HD 105382, HD 138769 and HD 55522, which we explain by rotational modulation rather than by pulsation. Consequently these variables are removed from the list of candidate Slowly Pulsating B stars.
Based on observations obtained with the Swiss photometric telescope and ESO’s CAT/CES telescope, both situated at La Silla, Chile