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The near-IR shape of the big blue bump emission from quasars: under the hot dust emission
Makoto Kishimoto, Robert Antonucci, Omer Blaes
One primary difficulty in understanding the nature of the putative accretion disk in the central engine of AGNs is that some of its key intrinsic spectral signatures are buried und…
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…
Revealing AGN by Polarimetry
Makoto Kishimoto, Robert Antonucci, Catherine Boisson +1
Polarimetric study in the UV and optical has been one of the keys to reveal the structure and nature of active galactic nuclei (AGN). Combined with the HST's high spatial resolutio…
The Shape of the Big Blue Bump as Revealed by Spectropolarimetry
R. Antonucci, M. Kishimoto, C. Boisson +1
Thermal models for the quasar Big Blue Bump generally lead to bound-free continuum features, which may be in absorption or emission. Searches for Lyman edges attributable to quasar…
A First Close Look at the Balmer Edge Behavior of the Quasar Big Blue Bump
Makoto Kishimoto, Robert Antonucci, Omer Blaes
We have found for the first time a Balmer edge feature in the polarized flux spectrum of a quasar (Ton 202). The edge feature is seen as a discontinuity in the slope, rather than a…
Four Partially Baked Results
Robert Antonucci, David H. Whysong
D Whysong and I have been carrying out a mid-IR survey of 3C radio galaxies to see which have IR-excesses, interpretable as hidden Type-1 AGN. Mostly due to relentless bad weather,…