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astro-ph1997
Observations of Cygnus X-1 during the two spectral states with the Indian X-ray Astronomy Experiment (IXAE)
A. R. Rao, P. C. Agrawal, B. Paul
We present the time variability characteristics of Cygnus X-1 in its two spectral states. The observations were carried out using the Pointed Proportional Counters (PPC) on-board t…
astro-ph1997
A double peaked pulse profile observed in GX 1+4
B. Paul, P. C. Agrawal, A. R. Rao +1
The hard X-ray pulsar GX 1+4 was observed several times in the last few years with a pair of balloon-borne Xenon filled Multi-cell Proportional Counters (XMPC). In a balloon flight…
astro-ph1997
Torque-luminosity correlation and possible evidence for core-crust relaxation in the X-ray pulsar GX 1+4
B. Paul, A. R. Rao, K. P. Singh
We present the detection of a positive correlation between spin-down rate and pulsed X-ray luminosity in the BATSE archival data of the bright hard X-ray pulsar GX 1+4. W…