58 citations · 74 across the 2 of their papers we have counts for
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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…
Discovery of a 3.6-hr Eclipsing Luminous X-Ray Binary in the Galaxy NGC 4214
Kajal K. Ghosh, Saul Rappaport, Allyn F. Tennant +3
We report the discovery of an eclipsing X-ray binary with a 3.62-hr period within 24" of the center of the dwarf starburst galaxy NGC 4214. The orbital period places interesting co…
X-ray and Optical Eclipses in ULXs as Possible Indicators of Black Hole Mass
David Pooley, Saul Rappaport
Ultraluminous X-ray sources (ULXs) with 10^39 < L_x < 10^41 erg/s have been discovered in great numbers in external galaxies with ROSAT, Chandra, and XMM-Newton. The central questi…
X-Ray and Optical Flux Anomalies in the Quadruply Lensed QSO 1RXS J1131-1231
Jeffrey A. Blackburne, Dave Pooley, Saul Rappaport
Optical and X-ray observations of the quadruply imaged quasar 1RXS J1131-1231 show flux ratio anomalies among the images factors of ~2 in the optical and \~3-9 in X-rays. Temporal…