MOST detects corotating bright spots on the mid-O type giant ξ Persei

Tahina Ramiaramanantsoa, Anthony F. J. Moffat, André-Nicolas Chené +11

We have used the MOST (Microvariability and Oscillations of STars) microsatellite to obtain four weeks of contiguous high-precision broadband visual photometry of the O7.5III(n)((f…