47 citations · 224 across the 22 of their papers we have counts for
4 papers · 1 filter
Narrow [O III] emission lines as a potential proxy for the evolutionary stage of quasars
Zhi-fu Chen, Zhe-Geng Chen, Xing-long Peng +1
Radio spectral shape of quasars can provide insight into the ages of quasars. We have compiled data for 1804 quasars with from the Sloan Digital Sky Survey (SDSS). Add…
Synchrotron polarization of a hybrid distribution of relativistic thermal and nonthermal electrons in GRB prompt emission
Kangfa Cheng, Jirong Mao, Xiaohong Zhao +4
Synchrotron polarization of relativistic nonthermal electrons in gamma-ray bursts (GRBs) has been widely studied. However, recent numerical simulations of relativistic shocks and m…
The Transition from Galaxy-wide Gas Inflow to Outflow in Quasar Host Galaxies
Zhicheng He, Zhifu Chen, Guilin Liu +8
Galactic-wide outflows driven by active galactic nuclei (AGNs) is a routinely invoked feedback mechanism in galaxy evolution models. Hitherto, the interplay among the interstellar…
The polarization-angle flip in GRB prompt emission
Kangfa Cheng, Xiaohong Zhao, Jirong Mao +1
Aims. We aim to provide an explanation for the PA rotation in GRBs and find the physical conditions that lead to the rotation by 90 degrees in the toroidal magnetic-field (MF) mode…