High-resolution X-ray spectroscopy of the stellar wind in Vela X-1 during a flare
High-resolution X-ray spectroscopy of the stellar wind in Vela X-1 during a flare
Context. We present a ~130 ks observation of the prototypical wind-accreting, high-mass X-ray binary Vela X-1 collected with XMM-Newton at orbital phases between 0.12 and 0.28. A strong flare took place during the observation that allows us to investigate the reaction of the clumpy stellar wind to the increased X-ray …