208 citations · 2.2k across the 95 of their papers we have counts for
4 papers · 1 filter
Galaxy-cluster associations from gravitational lensing
Xiang-Ping Wu, Francois Hammer
We investigate the associations between background galaxies and foreground clusters of galaxies due to the effect of gravitational lensing by clusters of galaxies. Similar to the w…
Gravitational Microlensing by the MACHOs of the LMC
Xiang-Ping Wu
The expected microlensing events of the LMC by the MACHOs of the LMC itself are calculated and compared with analogue events by objects in the Galactic halo. The LMC matter distrib…
A further discussion on quasar-galaxy associations from gravitational lensing
Xiang-Ping Wu
Quasar-galaxy associations, if they result from the effect of gravitational lensing by foreground galaxies, depend sensitively on the shape of the quasar number counts. Two kinds o…
Anisotropies of Cosmic Background Radiation from a Local Collapse
Xiang-Ping Wu, Li-Zhi Fang
We present an exact solution of the anisotropies of cosmic background radiation (CBR) from a local collapse described by a spherical over-dense region embedded in a flat universe,…