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Results from the CASTLES Survey of Gravitational Lenses
C. S. Kochanek, E. E. Falco, C. D. Impey +3
We show that most gravitational lenses lie on the passively evolving fundamental plane for early-type galaxies. For burst star formation models (1 Gyr of star formation, then quies…
A Statistical Study of Rest-frame Optical Emission Properties in Luminous Quasars at 2.0 < z < 2.5
D. H. McIntosh, M. J. Rieke, H. -W. Rix +2
We have obtained H-band spectra of 32 luminous quasars at 2.0<z<2.5 with the Multiple Mirror Telescope. The sample contains 15 radio-loud quasars (RLQs) and 17 radio-quiet quasars…
The Infrared Einstein Ring in the Gravitational Lens MG1131+0456 and the Death of the Dusty Lens Hypothesis
C. S. Kochanek, E. E. Falco, C. D. Impey +5
We have obtained and modeled new NICMOS images of the lens system MG1131+0456, which show that its lens galaxy is an H=18.6 mag, transparent, early-type galaxy at a redshift of abo…
The Extinction Distribution in the Galaxy UGC 5041
James Pizagno, Hans-Walter Rix
We probe the dust extinction through the foreground disk of the overlapping galaxy pair UGC 5041 by analyzing B,I, and H band images. The inclined foreground disk of this infrared-…
Lopsidedness in Early Type Disk Galaxies
Gregory Rudnick, Hans-Walter Rix
We quantify the mean asymmetry of 54 face-on, early type disk galaxies (S0 to Sab) using the amplitude of the m=1 azimuthal Fourier component of the R-band surface brightness. We f…
An Infrared Einstein Ring in the Gravitational Lens PG 1115+080
C. Impey, E. Falco, C. Kochanek +5
Hubble Space Telescope observations of the gravitational lens PG 1115+080 in the infrared show the known z =0.310 lens galaxy and reveal the z = 1.722 quasar host galaxy. The main…