activity
20042020
most citedTorus and AGN properties of nearby Seyfert galaxies: Results from fitting IR spectral energy distributions and spectroscopy

236 citations · 2.2k across the 38 of their papers we have counts for

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7 papers · 1 filter

astro-ph2008★ 60 cited

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…

astro-ph2007★ 72 cited

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…

astro-ph2007★ 36 cited

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…

astro-ph2007★ 33 cited

Dust and PAH emission in the star-forming active nucleus of NGC 1097

R. E. Mason, N. A. Levenson, C. Packham +4

The nucleus of the nearby galaxy, NGC 1097, is known to host a young, compact (r < 9 parsec) nuclear star cluster as well as a low-luminosity active galactic nucleus (AGN). It has…

astro-ph2006★ 47 cited

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…

astro-ph2005★ 125 cited

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…