5 papers
Complex Phase Lag Behaviors of the 0.5 - 10 Hz QPOs in GRS 1915+105
D. Lin, I. A. Smith, E. P. Liang +1
Through studying the hard lags between the soft (3.3 - 5.8 keV) and hard (13.0 - 41.0 keV) photons of the 0.5 - 10 Hz QPOs in GRS 1915+105, we have classified them into three types…
GRB990123: The Case for Saturated Comptonization
E. P. Liang, A. Crider, M. Boettcher +1
The recent simultaneous detection of optical, X-ray and gamma-ray photons from GRB990123 during the burst provides the first broadband multi-wavelength characterization of the burs…
Spectral Energy Distributions and Light Curves of GRB 990123 and its Afterglow
T. J. Galama, M. S. Briggs, R. A. M. J. Wijers +38
Gamma-ray bursts (GRBs) are thought to result from the interaction of an extremely relativistic outflow interacting with a small amount of material surrounding the site of the expl…
Observations of GX 339-4 in 1996
I. A. Smith, E. P. Liang, D. Lin +9
GX 339-4 is an unusual black hole candidate in that it is a persistent source, being detected by X-ray telescopes most of the time, but it also has nova-like flaring states. In 199…
Radiation Feedback in Hot Accretion-Disk Corona Models
M. Boettcher, E. P. Liang, I. A. Smith
We present a detailed study of the observable effects of photoionization and Comptonization of line and continuum radiation from a cold accretion disk with a thin, warm, photoioniz…