3A 0535+262 in outburst
  The Be/X-ray binary 3A 0535+262 has the highest magnetic field determined by cyclotron line studies of all accreting X-ray pulsars, despite an open debate if the fundamental line was rather at ~50 or above 100 keV as observed by different instruments in past outbursts. The source went into quiescence for more than ten years since its last outbursts in 1994. Observing during a `normal' outburst August/September 2005 with Integral and RXTE we find a strong cyclotron line feature at ~45 keV and have for the first time since 1975 determined the low energy pulse profile. 
P. Kretschmar, K. Pottschmidt, C. Ferrigno, I. Kreykenbohm, A.   Domingo, J. Wilms, R. Rothschild, W. Coburn, E. Kendziorra,...