RXTE Studies of Cyclotron Lines in Accreting Pulsars
  In this paper, we summarize the RXTE measurements of cyclotron resonance scattering features in 8 accreting pulsars. The wide bandpass and modest resolution of the RXTE instruments make them ideal for measuring these generally broad features. In particular, the high energy response of HEXTE provides a window for discovery of new lines not detectable with proportional counters such as Ginga or the PCA alone. 
W.A. Heindl, W. Coburn, D.E. Gruber, M. Pelling, R.E. Rothschild, P.   Kretschmar, I. Kreykenbohm, J. Wilms, K. Pottschmidt,...