Jeffrey A. Blackburne

Mass models and environment of the new quadruply lensed quasar SDSS J1330+1810 (2008)

Oguri, Masamune, Inada, Naohisa, Blackburne, Jeffrey A., Shin, Min-Su, Kayo, Issha, Strauss, Michael A., ...

We present the discovery of a new quadruply lensed quasar. The lens system, SDSS J1330+1810 at z_s=1.393, was identified as a lens candidate from the spectroscopic sample of the Sloan Digital Sky...

HE 1113-0641: The Smallest Separation Gravitational Lens Identified by a Ground-based Optical Telescope (2007)

Blackburne, Jeffrey A., Wisotzki, Lutz, Schechter, Paul L.

The Hamburg/ESO quasar HE 1113-0641 is found to be a quadruple gravitational lens, based on observations with the twin 6.5m Magellan telescopes at the Las Campanas Observatory, and subsequently with...

X-Ray and Optical Flux Ratio Anomalies in Quadruply Lensed Quasars: I. Zooming in on Quasar Emission Regions (2006)

Pooley, David, Blackburne, Jeffrey A., Rappaport, Saul, Schechter, Paul L.

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 of the central...

A Strong X-Ray Flux Ratio Anomaly in the Quadruply Lensed Quasar PG 1115+080 (2006)

Pooley, David, Blackburne, Jeffrey A., Rappaport, Saul, Schechter, Paul L., Fong, Wen-fai

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 of images exhibits...

X-Ray and Optical Flux Anomalies in the Quadruply Lensed QSO 1RXS J1131-1231 (2005)

Blackburne, Jeffrey A., Pooley, Dave, Rappaport, Saul

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 variability of the...

The Luminosity, Stellar Mass, and Number Density Evolution of Field Galaxies of Known Morphology from z = 0.5 - 3 (2004)

Conselice, Christopher J., Blackburne, Jeffrey A., Papovich, Casey

The evolution of rest-frame B-band luminosities, stellar masses, and number densities of field galaxies in the Hubble Deep Field North and South are studied as a function of rest-frame B-band...