The peculiar Of?p stars of the Magellanic Clouds

The Of?p category gathers strongly magnetic massive stars which exhibit rotationally modulated spectral and photometric changes. Thanks to OGLE data, we investigated the
photometric behaviour of five candidate Of?p stars in the Magellanic Clouds, revealing their variability. We combined these results to spectroscopic and spectropolarimetric investigations to further support the hypothesis that these are strongly magnetized O stars, analogous to the Of?p stars in the Galaxy.