activity
20052025
most citedX-Ray and Optical Flux Ratio Anomalies in Quadruply Lensed Quasars: I. Zooming in on Quasar Emission Regions

202 citations · 444 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.HE2025

25 Years of Groundbreaking Discoveries with Chandra

Patrick Slane, Ákos Bogdán, David Pooley

The Chandra X-ray Observatory is a mainstay of modern observational astrophysics. With the highest angular resolution of any X-ray facility, its imaging and spectral capabilities i…

astro-ph.GA2023★ 4 cited

Microlensing of strongly lensed quasars

G. Vernardos, D. Sluse, D. Pooley +9

Strong gravitational lensing of quasars has the potential to unlock the poorly understood physics of these fascinating objects, as well as serve as a probe of the lensing mass dist…

astro-ph.HE2013★ 20 cited

Spatially resolved star formation image and the ULX population in NGC2207/IC2163

S. Mineo, S. Rappaport, B. Steinhorn +3

The colliding galaxy pair NGC 2207/IC 2163, at a distance of ~39 Mpc, was observed with Chandra, and an analysis reveals 28 well resolved X-ray sources, including 21 ultraluminous…

astro-ph2006★ 82 cited

X-Ray Observations of Type Ia Supernovae with Swift: Evidence for Circumstellar Interaction for SN 2005ke

S. Immler, P. J. Brown, P. Milne +15

We present a study of the early (days to weeks) X-ray and UV properties of eight Type Ia supernovae (SNe Ia) which have been extensively observed with the X-Ray Telescope (XRT) and…

astro-ph2006★ 202 cited

X-Ray and Optical Flux Ratio Anomalies in Quadruply Lensed Quasars: I. Zooming in on Quasar Emission Regions

David Pooley, Jeffrey A. Blackburne, Saul Rappaport +1

X-ray and optical observations of quadruply lensed quasars can provide a microarcsecond probe of the lensed quasar, corresponding to scale sizes of \~10^2-10^4 gravitational radii…

astro-ph2006★ 58 cited

A Strong X-Ray Flux Ratio Anomaly in the Quadruply Lensed Quasar PG 1115+080

David Pooley, Jeffrey A. Blackburne, Saul Rappaport +2

PG 1115+080 is a quadruply lensed quasar at z=1.72 whose image positions are well fit by simple models of the lens galaxy (at z=0.31). At optical wavelengths, the bright close pair…