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Three discoveries of γ Cas analogues from dedicated XMM-Newton observations of Be stars

Smith, Myron A.; Nazé, Yaël; Torrejón, José M. +5 more

In the last years, a peculiarity of some Be stars - their association with unusually hard and intense X-ray emission - was shown to extend beyond a mere few cases. In this paper, we continue our search for new cases by performing a limited survey of 18 Be stars using XMM-Newton. The targets were selected either on the basis of a previous X-ray det…