Using Beta Centauri to Probe the Wind-Photosphere Connection

The B1 III star Beta Centauri is a Beta Cephei variable with a high Xraycount rate. In the first observation of this star with a highresolutionXray spectrograph, we will determine if the Xrays are widely distributedin the wind by using the forbidden, intercombination, and resonance lines of O VII along with line profile information. The efficiency of XMMNewton is used to full advantage in this project because at the same time the RGS spectrum is being taken, the copointed PN and MOS instruments will give us a light curve with extremely high statistical confidence. This light curve will be used to probe the connection between the photospheric pulsations and the Xray production in the wind. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]