58 citations · 85 across the 6 of their papers we have counts for
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astro-ph.CO2013★ 58 cited
Searching for a preferred direction with Union2.1 data
Xiaofeng Yang, F. Y. Wang, Zhe Chu
A cosmological preferred direction was reported from the type Ia supernovae (SNe Ia) data in recent years. We use the Union2.1 data to give a simple classification of such studies…
astro-ph.CO2013★ 3 cited
Analytical Solutions of Singular Isothermal Quadrupole Lens
Zhe Chu, W. P. Lin, Xiaofeng Yang
Using analytical method, we study the Singular Isothermal Quadrupole (SIQ) lens system, which is the simplest lens model that can produce four images. In this case, the radial mass…
astro-ph.CO2013★ 14 cited
Multipole Gravitational Lensing and High-order Perturbations on the Quadrupole Lens
Z. Chu, W. P. Lin, G. L. Li +1
An arbitrary surface mass density of gravitational lens can be decomposed into multipole components. We simulate the ray-tracing for the multipolar mass distribution of generalized…