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The Hidden Fortress: Structure and substructure of the complex strong lensing cluster SDSS J1029+2623
Masamune Oguri, Tim Schrabback, Eric Jullo +8
We present Hubble Space Telescope (HST) ACS and WFC3 observations of SDSS J1029+2623, a three-image quasar lens system produced by a foreground cluster at z=0.584. Our strong lensi…
A Two-Year Time Delay for the Lensed Quasar SDSS J1029+2623
Janine Fohlmeister, Christopher S. Kochanek, Emilio E. Falco +3
We present 279 epochs of optical monitoring data spanning 5.4 years from 2007 January to 2012 June for the largest image separation (22.6 arcsec) gravitationally lensed quasar, SDS…
Measuring Microlensing using Spectra of Multiply Lensed Quasars
V. Motta, E. Mediavilla, E. Falco +1
We report on a program of spectroscopic observations of gravitationally-lensed QSOs with multiple images. We seek to establish whether microlensing is occurring in each QSO image u…
CfA4: Light Curves for 94 Type Ia Supernovae
Malcolm Hicken, Peter Challis, Robert P. Kirshner +36
We present multi-band optical photometry of 94 spectroscopically-confirmed Type Ia supernovae (SN Ia) in the redshift range 0.0055 to 0.073, obtained between 2006 and 2011. There a…