activity
19982011
most citedRing structure and warp of NGC5907 -- Interaction with dwarf galaxies

139 citations · 238 across the 13 of their papers we have counts for

collaborators

13 papers

astro-ph.CO2011★ 6 cited

Time-Dependent Behavior of Lyman Photon Transfer in High Redshift Optically Thick Medium

Wen Xu, Xiang-Ping Wu, Li-Zhi Fang

With Monte Carlo simulation method, we investigate the time dependent behavior of Ly photon transfer in optically thick medium of the concordance CDM universe. At high redshi…

astro-ph.CO2010★ 3 cited

On the formation of Lyman emission from resonantly scattered continuum photons of GRB's afterglow

Wen Xu, Xiang-Ping Wu

We study the formation and evolution of the spectral imprint of resonantly scattered Lyman photons in the context of GRB's continuum optical afterglow. Based on an analytic mod…

astro-ph.CO2009★ 9 cited

Wouthuysen-Field Coupling in the 21 cm Region Around High Redshift Sources

I. Roy, W. Xu, J. M. Qiu +2

The 21 cm emission and absorption from gaseous halos around the first generation of star depend on the Wouthuysen-Field (W-F) coupling, which relates the spin temperature with the…

astro-ph2008★ 12 cited

Time evolution of Wouthuysen-Field coupling

I. Roy, W. Xu, J. -M. Qiu +2

We study the Wouthuysen-Field coupling at early universe with numerical solutions of the integrodifferential equation describing the kinetics of photons undergoing resonant scatter…

astro-ph1999★ 17 cited

Virialization of Galaxy Clusters and Beyond

Wen Xu, Li-Zhi Fang, Xiang-Ping Wu

Using samples of structures identified by a multi-scale decomposition from numerical simulation, we analyze the scale-dependence of the virialization of clusters. We find that beyo…

astro-ph1999★ 3 cited

The Flatness of Mass-to-Light Ratio on Large Scales

Li-Zhi Fang, Wen Xu

It has been suggested that the mass-to-light () ratio of gravitationally clustering objects is scale-independent on scales beyond galaxy clusters, and may also be independent…