63 citations · 163 across the 6 of their papers we have counts for
3 papers · 1 filter
Estimating black hole masses in obscured AGN using X-rays
Mario Gliozzi, James K. Williams, Dina A. Michel
Determining the black hole masses in active galactic nuclei (AGN) is of crucial importance to constrain the basic characteristics of their central engines and shed light on their g…
The soft X-ray excess: NLS1s vs. BLS1s
M. Gliozzi, J. K. Williams
The soft X-ray excess - the excess of X-rays below 2 keV with respect to the extrapolation of the hard X-ray spectral continuum model - is a very common feature among type 1 active…
Are NLS1s highly accreting low black hole mass AGNs?
James K. Williams, Mario Gliozzi, Ross V. Rudzinsky
In this work, we test the hypothesis that narrow-line Seyfert 1 galaxies (NSL1s) are active galactic nuclei in their early phase and are therefore younger and more active than the…