79 citations · 385 across the 29 of their papers we have counts for
29 papers
Equivalence of the Fermat potential and the lensing potential approaches to computing the integrated Sachs-Wolfe effect
R. Kantowski, B. Chen, X. Dai
We show in detail that the recently derived expression for evaluating the integrated Sachs-Wolfe (ISW) temperature shift in the cosmic microwave background (CMB) caused by individu…
Accelerating gravitational microlensing simulations using the Xeon Phi coprocessor
Bin Chen, Ronald Kantowski, Xinyu Dai +2
Recently Graphics Processing Units (GPUs) have been used to speed up very CPU-intensive gravitational microlensing simulations. In this work, we use the Xeon Phi coprocessor to acc…
Algorithms And Programs For Strong Gravitational Lensing In Kerr Space-time Including Polarization
Bin Chen, Ronald Kantowski, Xinyu Dai +2
Active galactic nuclei (AGNs) and quasars are important astrophysical objects to understand. Recently, microlensing observations have constrained the size of the quasar X-ray emiss…
Probing the integrated Sachs-Wolfe effect using embedded lens models
Bin Chen, Ronald Kantowski
The photometry profile of the integrated Sachs-Wolfe (ISW) effect recently obtained by the Planck consortium by stacking patches of Cosmic Microwave Background (CMB) sky maps aroun…
An integrated Sachs-Wolfe effect vs redshift test for the cosmological parameters
Ronald Kantowski, Bin Chen, Xinyu Dai
We describe a method using the integrated Sachs-Wolfe (ISW) effect caused by individual inhomogeneities to determine the cosmological parameters, , , and , etc…
A Simple Gravitational Lens Model For Cosmic Voids
Bin Chen, Ronald Kantowski, Xinyu Dai
We present a simple gravitational lens model to illustrate the ease of using the embedded lensing theory when studying cosmic voids. It confirms the previously used repulsive lensi…