233 citations · 3.9k across the 96 of their papers we have counts for
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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…
X-ray monitoring of gravitationally lensed radio-loud quasars with Chandra
Mustafa Burak Dogruel, Xinyu Dai, Eduardo Guerras +2
In this work, we calculated the sizes of unresolved X-ray emission regions in three gravitationally lensed radio-loud quasars, B\,1422+231, MG\,J0414+0534 and Q\,0957+561, using a…
The Swift AGN and Cluster Survey. II. Cluster Confirmation with SDSS Data
Rhiannon D. Griffin, Xinyu Dai, Christopher S. Kochanek +1
We study 203 (of 442) Swift AGN and Cluster Survey extended X-ray sources located in the SDSS DR8 footprint to search for galaxy over-densities in three dimensional space using SDS…
The SWIFT AGN and Cluster Survey I: Number Counts of AGN and Galaxy Clusters
Xinyu Dai, Rhiannon D. Griffin, Christopher S. Kochanek +2
The Swift AGN and Cluster Survey (SACS) uses 125 deg^2 of Swift XRT serendipitous fields with variable depths surrounding gamma-ray bursts to provide a medium depth (4e-15 erg/s/cm…
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…
Unifying X-ray Scaling Relations from Galaxies to Clusters
Michael E. Anderson, Massimo Gaspari, Simon D. M. White +2
We examine a sample of "locally brightest galaxies" selected from the Sloan Digital Sky Survey to be central galaxies within their dark matter halos. These were prev…