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A High Resolution View of the Warm Absorber in the Quasar MR2251-178
J. N. Reeves, D. Porquet, V. Braito +5
High resolution X-ray spectroscopy of the warm absorber in the nearby quasar, MR2251-178 (z = 0.06398) is presented. The observations were carried out in 2011 using the Chandra Hig…
Modeling the Fe K Line Profiles in Type I AGN with a Compton-Thick Disk Wind
M. M. Tatum, T. J. Turner, S. A. Sim +4
We have modeled a small sample of Seyfert galaxies that were previously identified as having simple X-ray spectra with little intrinsic absorption. The sources in this sample all c…
Observations of Outflowing UV Absorbers in NGC 4051 with the Cosmic Origins Spectrograph
S. B. Kraemer, D. M. Crenshaw, J. P. Dunn +6
We present new Hubble Space Telescope (HST)/Cosmic Origins Spectrograph observations of the Narrow-Line Seyfert 1 galaxy NGC 4051. These data were obtained as part of a coordinated…
X-ray Signatures of Circumnuclear Gas in AGN
T. J. Turner, L. Miller, M. Tatum
X-ray spectra of AGN are complex. X-ray absorption and emission features trace gas covering a wide range of column densities and ionization states. High resolution spectra show the…
A Multi-Wavelength Study of the Nature of Type 1.8/1.9 Seyfert Galaxies
M. L. Trippe, D. M. Crenshaw, R. P. Deo +4
We focus on determining the underlying physical cause of a Seyfert galaxy's appearance as type a 1.8 or 1.9. Are these "intermediate" Seyfert types typical Seyfert 1 nuclei with re…
Significant X-ray Line Emission in the 5-6 keV band of NGC 4051
T. J. Turner, L. Miller, J. N. Reeves +4
A Suzaku X-ray observation of NGC 4051 taken during 2005 Nov reveals line emission at 5.44 keV in the rest-frame of the galaxy which does not have an obvious origin in known rest-f…