93 citations · 153 across the 5 of their papers we have counts for
9 papers
HEXTE Studies of Sco X-1 Spectra: Detections of Hard X-Ray Tails Beyond 200 keV
F. D'Amico, W. A. Heindl, R. E. Rothschild +4
Using the HEXTE experiment on-board the RXTE satellite, we performed a search for hard X-ray tails in Sco X-1 spectra. We found strong evidence for the presence of such a non-therm…
RXTE Studies of Cyclotron Lines in Accreting Pulsars
W. A. Heindl, W. Coburn, D. E. Gruber +7
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…
Multiple Cyclotron Lines in the Spectrum of 4U 0115+63
W. A. Heindl, W. Coburn, D. E. Gruber +5
We report phase resolved spectroscopy of the transient accreting pulsar, 4U0115+63. For the first time, more than two cylotron resonance scattering features are detected in the spe…
The 1999 Hercules X-1 Anomalous Low State
W. Coburn, W. A. Heindl, J. Wilms +8
A failed main-on in the 35d cycle of Her X-1 was observed with the Rossi X-Ray Timing Explorer (RXTE) on 1999 April 26. Exceptions to the normal 35d cycle have been seen only twice…
Discovery of a Third Harmonic Cyclotron Resonance Scattering Feature in the X-ray Spectrum of 4U 0115+63
W. A. Heindl, W. Coburn, D. E. Gruber +5
We have discovered a third harmonic cyclotron resonance scattering feature (CRSF) in observations of the recent outburst of 4U 0115+63 with the Rossi X-ray Timing Explorer (RXTE).…
Discovery of a New 89 Second X-ray Pulsar XTE J1906+09
D. Marsden, D. E. Gruber, W. A. Heindl +2
We report on the discovery of a new pulsating X-ray source during Rossi X-ray Timing Explorer observations of a low galactic latitude field centered at RA (J2000) = 19 hr 05 m 43 s…