546 citations · 3.7k across the 84 of their papers we have counts for
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astro-ph2004★ 3 cited
Shot cutoff timescales in different spectral states of Cygnus X-1
Hua Feng, Shuang-Nan Zhang, Ti-Pei Li
We investigate the shot cutoff timescale evolutions during different spectral states in the black hole binary Cygnus X-1 with the recently proposed w spectral analysis technique. F…
astro-ph2004★ 6 cited
X-ray triple rings around the M87 jets in the central Virgo cluster
Hua Feng, Shuang-Nan Zhang, Yu-Qing Lou +1
The Chandra X-ray data of the central Virgo cluster are re-examined to reveal a triple-ring structure around the galaxy M87, reminiscent of the spectacular triple-ring pattern of t…
astro-ph2004★ 9 cited
Diagnostics of Neutron Star and Black Hole X-Ray Binaries with X-Ray Shot Widths
H. Feng, T. P. Li, S. N. Zhang
A statistic w, the differential coefficient of the mean absolute difference of an observed lightcurve, is proposed for timescale analysis of shot widths. The shortest width of rand…