Active galactic nuclei (AGN) show evidence for reprocessing gas, outflowing from the accreting black hole. The combined effects of absorption and scattering from the circumnuclear material likely explains the `hard excess' of X-ray emission above 20 keV, compared with extrapolation of spectra from lower X-ray energies. In a recent {\it Suzaku} study, we established the ubiquitous hard excess in hard X-ray-selected, radio-quiet type\,1 AGNs to be consistent with reprocessing of the X-ray continuum an ensemble of clouds, located tens to hundreds of gravitational radii from the nuclear black hole. Here we add hard X-ray-selected, type\,2 AGN to extend our original study and show that the gross X-ray spectral properties of the entire local popu...
Aims. We determine the cumulative spectral energy distribution (SED) of local active galactic nucle...
Aims.We study the hard X-ray luminosity function and absorption distribution of local ($z\lesssim ...
We present modelling and interpretation of the continuum and emission lines for a sample of 51 unobs...
Active galactic nuclei (AGN) show evidence for reprocessing gas, outflowing from the accreting black...
Recent evidence for a strong "hard excess" of flux at energies ≳ 20 keV in some Suzaku observations ...
We develop a new spectral model for the broad-band spectral energy distribution (SED) of active gala...
Studies have indicated that black holes and their host galaxies must co-evolve, although the mechani...
The origin of the soft excess seen in many active galactic nuclei (AGN) below ~1 keV is still an uns...
Finding and characterizing the population of active galactic nuclei (AGNs) that produces the X-ray b...
I review the constraints that X-ray observations impose on the physical properties and the geometric...
We systematically analyse all publicly available XMM–Newton spectra of radio-quiet PG quasars. The s...
We investigate the nature of the soft excess below 1keV observed in AGN. We use the XMM-Newton data ...
One of the great mysteries surrounding active galactic nuclei (AGN) is their triggering mechanism. ...
Heavily obscured accretion is believed to represent an important stage in the growth of supermassive...
The soft excess seen in the X-ray spectra of many active galactic nuclei (AGN) can be well modelled ...
Aims. We determine the cumulative spectral energy distribution (SED) of local active galactic nucle...
Aims.We study the hard X-ray luminosity function and absorption distribution of local ($z\lesssim ...
We present modelling and interpretation of the continuum and emission lines for a sample of 51 unobs...
Active galactic nuclei (AGN) show evidence for reprocessing gas, outflowing from the accreting black...
Recent evidence for a strong "hard excess" of flux at energies ≳ 20 keV in some Suzaku observations ...
We develop a new spectral model for the broad-band spectral energy distribution (SED) of active gala...
Studies have indicated that black holes and their host galaxies must co-evolve, although the mechani...
The origin of the soft excess seen in many active galactic nuclei (AGN) below ~1 keV is still an uns...
Finding and characterizing the population of active galactic nuclei (AGNs) that produces the X-ray b...
I review the constraints that X-ray observations impose on the physical properties and the geometric...
We systematically analyse all publicly available XMM–Newton spectra of radio-quiet PG quasars. The s...
We investigate the nature of the soft excess below 1keV observed in AGN. We use the XMM-Newton data ...
One of the great mysteries surrounding active galactic nuclei (AGN) is their triggering mechanism. ...
Heavily obscured accretion is believed to represent an important stage in the growth of supermassive...
The soft excess seen in the X-ray spectra of many active galactic nuclei (AGN) can be well modelled ...
Aims. We determine the cumulative spectral energy distribution (SED) of local active galactic nucle...
Aims.We study the hard X-ray luminosity function and absorption distribution of local ($z\lesssim ...
We present modelling and interpretation of the continuum and emission lines for a sample of 51 unobs...