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X. H. Zhao

Researcher at Chinese Academy of Sciences

Publications -  33
Citations -  709

X. H. Zhao is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Gamma-ray burst & Afterglow. The author has an hindex of 13, co-authored 33 publications receiving 532 citations.

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Cygnus X-1 contains a 21-solar mass black hole-Implications for massive star winds.

TL;DR: In this paper, the authors used radio astrometry to refine the distance to the black hole X-ray binary Cygnus X-1, which was found to be 2.22 − 0.17 + 0.18 kiloparsecs.
Journal ArticleDOI

Tests for Standard Accretion Disk Models by Variability in Active Galactic Nuclei

TL;DR: In this paper, the standard accretion disk models of active galactic nuclei (AGNs) are tested using light curves of 26 objects that have been well observed using reverberation mapping.
Journal ArticleDOI

The $E_{p}$ Evolutionary Slope within the Decay Phase of "FRED" Gamma-ray Burst Pulses

TL;DR: In this paper, Lu et al. investigated the evolutionary slope of the peak energy in the gamma-ray burst (GRB) spectrum with time during the pulse decay phase and found that the evolutionary slopes are normally distributed for both samples and concentrated around the values of 0.73 and 0.76 for Band and Compton models, respectively.