72 citations · 279 across the 6 of their papers we have counts for
6 papers · 1 filter
Gemini Imaging of Mid-IR Emission from the Nuclear Region of Centaurus A
James T. Radomski, Christopher Packham, N. A. Levenson +7
We present high spatial resolution mid-IR images of the nuclear region of NGC 5128 (Centaurus A). Images were obtained at 8.8 micron, N-band (10.4 micron), and 18.3 micron using th…
The Mid-Infrared Emission of M87
E. S. Perlman, R. E. Mason, Christopher Packham +6
We discuss Subaru and Spitzer Space Telescope imaging and spectroscopy of M87 in the mid-infrared from 5-35 um. These observations allow us to investigate mid-IR emission mechanism…
Gemini Mid-IR Polarimetry of NGC1068: Polarized Structures Around the Nucleus
C. Packham, S. Young, R. S. Fisher +7
We present diffraction limited, 10um imaging polarimetry data for the central regions of the archetypal Seyfert AGN, NGC1068. The position angle of polarization is consistent with…
Silicate absorption in heavily obscured galaxy nuclei
P. F. Roche, C. Packham, D. K. Aitken +1
Spectroscopy at 8-13 microns with T-ReCS on Gemini-S is presented for 3 galaxies with substantial silicate absorption features, NGC 3094, NGC 7172 and NGC 5506. In the galaxies wit…
Spatially-resolved mid-infrared spectroscopy of NGC 1068: the nature and distribution of the nuclear material
R. E. Mason, T. R. Geballe, C. Packham +4
We present spatially-resolved, near-diffraction-limited 10 micron spectra of the nucleus of the Seyfert 2 galaxy NGC 1068, obtained with Michelle, the mid-IR imager and spectromete…
Hydrocarbon Dust Absorption in Seyfert Galaxies and ULIRGs
R. E. Mason, G. Wright, Y. Pendleton +1
We present new spectroscopic observations of the 3.4 micron absorption feature in the Seyfert galaxies, NGC1068 and NGC7674, and the ultraluminous infrared galaxy, IRAS08572+3915.…