67 citations · 159 across the 13 of their papers we have counts for
13 papers
Classifying Gamma-Ray Bursts with Gaussian Mixture Model
En-Bo Yang, Zhi-Bin Zhang, Chul-Sung Choi +1
Using Gaussian Mixture Model (GMM) and Expectation Maximization Algorithm, we perform an analysis of time duration () for \textit{CGRO}/BATSE, \textit{Swift}/BAT and \texti…
Radio Afterglows and Host Galaxies of Gamma-Ray Bursts
Long-Biao Li, Zhi-Bin Zhang, Yong-Feng Huang +5
Considering the contribution of the emission from the host galaxies of gamma-ray bursts (GRBs) to the radio afterglows, we investigate the effect of host galaxies on observations s…
Resolving a Class I Protostar Binary System with Chandra
Kenji Hamaguchi, Minho Choi, Michael F. Corcoran +3
Using a sub-pixel event repositioning technique, we spatially resolved X-ray emission from the infrared double system IRS 5 in the R Corona Australis molecular cloud with ~0.8" sep…
An analysis of the durations of Swift Gamma-Ray Bursts
Zhi-Bin Zhang, Chul-Sung Choi
We report the systematic analysis of the durations for Swift gamma-ray bursts (GRBs) and compare the results with those of pre-Swift data. For 95 GRBs with known redshift, we show…
The X-ray Pulse Profile of BG CMi
Chul-Sung Choi, Tadayasu Dotani, Yonggi Kim +1
We present an analysis of the X-ray data of a magnetic cataclysmic variable, BG CMi, obtained with ROSAT in March 1992 and with ASCA in April 1996. We show that four peaks clearly…
A Flare of AE Aquarii Observed with XMM-Newton
Chul-Sung Choi, Tadayasu Dotani
We present the results of analyzing the XMM-Newton data obtained in 2001 November 7 - 8. A flare is observed simultaneously in X-ray and UV together with a quiescence. We find that…