103 citations · 282 across the 4 of their papers we have counts for
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The Importance of Intergalactic Structure to Gravitationally Lensed Quasars
R. Benton Metcalf
Image flux ratio anomalies have been attributed to substructures within the gravitational lens and to small mass halos (M <~ 10^10 Msun) in intergalactic space. In this paper, anal…
Confronting LCDM with Gravitational Lensing Constraints on Small Scale Structure
R. Benton Metcalf
This paper primarily addresses the question of whether recent lensing observations probing the small scale structure in the universe are consistent with the LCDM model. A conservat…
Spectroscopic Gravitational Lensing and Limits on the Dark Matter Substructure in Q2237+0305
R. B. Metcalf, L. A. Moustakas, A. J. Bunker +1
Spatially resolved spectroscopic data from the CIRPASS integral field unit (IFU) on Gemini are used to measure the gravitational lensing of the 4-image quasar Q2237+0305 on differe…
The Detection of Pure Dark Matter Objects with Bent Multiply Imaged Radio Jets
R. Benton Metcalf
When a gravitational lens produces two or more images of a quasar's radio jet the images can be compared to reveal the presence of small structures along one or more of the lines o…