Wind accretion in Vela X-1

P. Kretschmar

 I. Kreykenbohm, J. Wilms, R. Staubert, E. Kendziorra

 D. Gruber, W. Heindl, R. Rothschild


We present results from a 40 ksec RXTE observation of Vela X-1. The observation was characterized by unexpectedly strong absorption and included an extended dip in the lightcurve. Based on analysis of the broad-band X-ray spectra during and outside the dip we discuss possible explanations for this behaviour. In addition, we address the question of the fundamental cyclotron line energy of Vela X-1.

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On 16 Jul 1999, 09:18.