73 citations · 94 across the 5 of their papers we have counts for
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3 papers · 1 filter
astro-ph.GA2020
An X-ray Luminosity-dependent "Changing-look" Phenomenon in UGC 3223
J. Wang, D. W. Xu, J. Y. Wei
The nature of the rare "Changing-look" (CL) phenomenon in active galactic nuclei (AGNs) is still under debate at current stage. We here present \it Swift/\rm XRT and UVOT follow-up…
astro-ph.GA2015★ 9 cited
A Direct Linkage Between AGN Outflows in The Narrow-line Regions and The X-ray Emission From The Accretion disks
J. Wang, D. W. Xu, J. Y. Wei
The origin of outflow in narrow-line region (NLR) of active galactic nucleus (AGN) is studied in this paper by focusing on the relationship between the [\ion{O}{3}]5007 line pro…
astro-ph.GA2010★ 73 cited
The Wolf-Rayet features and mass-metallicity relation of long-duration gamma-ray burst host galaxies
X. H. Han, F. Hammer, Y. C. Liang +4
Aims. We have gathered optical spectra of 8 long-duration GRB host galaxies selected from the archival data of VLT/FORS2. We investigated whether or not Wolf-Rayet (WR) stars can b…