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HST NICMOS Imaging of z ~ 2 to 3 radio-quiet quasars
S. Ridgway, T. Heckman, D. Calzetti +1
We will present the results of a NICMOS H-band imaging survey of a small sample of z ~ 2 to 3 radio-quiet quasars. We have resolved extension in at least 4 of 5 objects and find ev…
The importance of radio sources in accounting for the highest mass black holes
Mark Lacy, Susan Ridgway, Neil Trentham
The most massive black holes lie in the most massive elliptical galaxies, and at low-z all radio-loud AGNs lie in giant ellipticals. This strongly suggests a link between radio-lou…
Optical spectroscopy of two overlapping, flux-density-limited samples of radio sources in the North Ecliptic Cap, selected at 38 MHz and 151 MHz
Mark Lacy, Steve Rawlings, Gary J. Hill +3
We present the results of optical spectroscopy of two flux-density-limited samples of radio sources selected at frequencies of 38 and 151 MHz in the same region around the North Ec…
High-Resolution K' Imaging of the z = 1.786 Radio Galaxy 3C 294
Alan Stockton, Gabriela Canalizo, Susan E. Ridgway
We have obtained imaging in the K' band (~I-band rest frame) of the z=1.786 radio galaxy 3C 294 with the 36-element curvature-sensing adaptive optics system Hokupa`a and the Canada…
Radio-optical alignments in a low radio luminosity sample
Mark Lacy, Susan E. Ridgway, Margrethe Wold +2
We present an optically-based study of the alignment between the radio axes and the optical major axes of eight z~0.7 radio galaxies in a 7C sample. The radio galaxies in this samp…