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Mid-Infrared Spectra of High Redshift (z>2) Radio Galaxies
N. Seymour, P. Ogle, C. De Breuck +8
We present the first mid-infrared Spitzer/Infrared Spectrograph (IRS) observations of powerful radio galaxies at z>2. These radio galaxies, 4C +23.56 (z=2.48) and 6C J1908+7220 (z=…
Aromatic Features in AGN: Star-Forming Infrared Luminosity Function of AGN Host Galaxies
Yong Shi, Patrick Ogle, George H. Rieke +6
We describe observations of aromatic features at 7.7 and 11.3 um in AGN of three types including PG, 2MASS and 3CR objects. The feature has been demonstrated to originate predomina…
Shocked Molecular Hydrogen in the 3C 326 Radio Galaxy System
Patrick Ogle, Robert Antonucci, P. N. Appleton +1
The Spitzer spectrum of the giant FR II radio galaxy 3C 326 is dominated by very strong molecular hydrogen emission lines on a faint IR continuum. The H2 emission originates in the…
Mid Infrared Spectra of Radio Galaxies and Quasars
P. M. Ogle, R. R. J. Antonucci, D. Whysong
Spitzer Infrared Spectrograph (IRS) observations of 3C radio galaxies and quasars shed new light on the nature of the central engines of AGN. Emission from silicate dust obscuring…
Hubble Space Telescope Ultraviolet Spectroscopy of Fourteen Low-Redshift Quasars
Rajib Ganguly, Michael S. Brotherton, Nahum Arav +35
We present low-resolution ultraviolet spectra of 14 low redshift (z<0.8) quasars observed with HST/STIS as part of a Snap project to understand the relationship between quasar outf…
Spitzer Reveals Hidden Quasar Nuclei in Some Powerful FR II Radio Galaxies
P. M. Ogle, D. Whysong, R. Antonucci
We present a Spitzer mid-infrared survey of 42 Fanaroff-Riley class II radio galaxies and quasars from the 3CRR catalog at redshift z<1. All of the quasars and 45+/-12% of the narr…