8 papers
GX 301-2 as seen by Integral
I. Kreykenbohm, K. Pottschmidt, P. Kretschmar +9
We present observations of the High Mass X-ray Binary GX 301-2 taken during the Galactic Plane Scan (GPS) with Integral following our RXTE observations (Kreykenbohm et al. 2004). T…
A Her X-1 Turn-On: Using the pulse profile to probe the outer edge of an accretion disk
M. Kuster, J. Wilms, R. Staubert +5
The X-ray binary pulsar Her X-1 shows a wide variety of long and short term variabilities in the X-ray light curve. The 35 d variability of the source is interpreted as the influen…
Propeller vs. Magnetar Concepts for SGR/AXPs
Richard E. Rothschild, Richard E. Lingenfelter, David Marsden
Two lines of thought exist as to the nature of Soft Gamma-ray Repeaters (SGRs) and Anomalous X-ray Pulsars (AXPs). On the one hand,we have neutron stars with super-critical magneti…
Fossil Disks and Propellor Spindown of SGR/AXPs
Richard E. Rothschild, David Marsden, Richard E. Lingenfelter
We have shown that the interstellar media which surround the progenitors of SGRs and AXPs were unusually dense compared to the environments around most young radio pulsars. This en…
Studies of Hard X-ray Tails in Z sources with RXTE/HEXTE
F. D'Amico, W. A. Heindl, R. E. Rothschild +1
We report RXTE results of spectral analyses of three (Sco X-1, GX 349+2, and Cyg X-2) out of the 6 known Z sources, with emphasis in the hard X-ray emission. No hard X-ray tails we…
HEXTE Detections of Hard X-Ray Tails in Sco X-1
F. D'Amico, W. A. Heindl, R. E. Rothschild +1
We report the detection of a non-thermal hard X-ray component from Sco X-1 based upon the analysis of 20-220 keV spectra obtained with the HEXTE experiment on-board the RXTE satell…