197 citations · 318 across the 4 of their papers we have counts for
9 papers · 1 filter
Multi-dimensional modelling of X-ray spectra for AGN accretion-disk outflows
S. A. Sim, K. S. Long, L. Miller +1
We use a multi-dimensional Monte Carlo code to compute X-ray spectra for a variety of active galactic nucleus (AGN) disk-wind outflow geometries. We focus on the formation of blue-…
Fourier-resolved energy spectra of the Narrow Line Seyfert 1 Mkn 766
P. Arevalo, I. M. McHardy, A. Markowitz +4
We compute Fourier-resolved X-ray spectra of the Seyfert 1 Markarian 766 to study the shape of the variable components contributing to the 0.3-10 keV energy spectrum and their time…
Spitzer/IRS Observations of Seyfert 1.8s and 1.9s: A Comparison with Seyfert 1s and Seyfert 2s
R. P. Deo, D. M. Crenshaw, S. B. Kraemer +4
We present Spitzer Space Telescope mid-infrared spectra of 12 Seyfert 1.8 and 1.9 galaxies over the 5-38 um region. We compare the spectral characteristics of this sample to those…
Low accretion rates at the AGN cosmic downsizing epoch
A. Babic, L. Miller, M. J. Jarvis +3
Context: X-ray surveys of Active Galactic Nuclei (AGN) indicate `cosmic downsizing', with the comoving number density of high-luminosity objects peaking at higher redshifts (z abou…
The Variable X-ray Spectrum of Markarian 766 - II. Time-Resolved Spectroscopy
T. J. Turner, L. Miller, J. N. Reeves +1
CONTEXT: The variable X-ray spectra of AGN systematically show steep power-law high states and hard-spectrum low states. The hard low state has previously been found to be a compon…
The variable X-ray spectrum of Markarian 766 - I. Principal components analysis
L. Miller, T. J. Turner, J. N. Reeves +3
Aims: We analyse a long XMM-Newton spectrum of the narrow-line Seyfert 1 galaxy Mrk 766, using the marked spectral variability on timescales >20ks to separate components in the X-r…