30 citations · 30 across the 1 of their papers we have counts for
11 papers
Gamma-Ray Bursts are Produced Predominately in the Early Universe
J. R. Lin, S. N. Zhang, T. P. Li
It is known that some observed gamma-ray bursts (GRBs) are produced at cosmological distances and that the GRB production rate may follow the star formation rate. We model the BATS…
BeppoSAX Observations of the galactic source GS1826-238 in a hard X-ray high state
Stefano Del Sordo, Filippo Frontera, Elena Pian +7
The BeppoSAX Narrow Field Instruments observed the galactic source GS1826-238 in October 1997, following a hard X-ray outburst with a peak flux of about 100 mCrab detected by BATSE…
X-Ray Spectral Behavior of the Relativistic Jet Source Cygnus X-3
M. L. McCollough, C. R. Robinson, S. N. Zhang +13
Cyg X-3 is an unusual X-ray binary which shows remarkable correlative behavior between the hard X-ray, soft X-ray, and the radio. We present an analysis of these long term light cu…
On Gravitomagnetic Precession and Qpo in Black Hole Candidates
Wei Cui, Wan Chen, S. N. Zhang
The X-ray observation of black hole candidates provides a valuable tool to probe regions very close to the central black hole, where strong-field relativistic effects become import…
COMPTEL Observation of the Flaring Quasar PKS0528+134
S. Zhang, T. P. Li, M. Wu
With a direct demodulation method, we have reanalyzed the data from COMPTEL/CGRO observation of PKS0528+134 during the 1993 March flare in gamma-rays. Our results show that during…
Cygnus X-1: A Spinning Black Hole?
Wei Cui, Wan Chen, S. N. Zhang
It has been a long-standing puzzle what triggers the spectral transition between the hard and soft states in Cyg X-1. Also, the origin of the frequently observed X-ray flares in th…