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On the diversity and complexity of absorption line profiles produced by outflows in Active Galactic Nuclei
Margherita Giustini, Daniel Proga
Understanding the origin of AGN absorption line profiles and their diversity could help to explain the physical structure of the accretion flow, and also to assess the impact of ac…
Variable X-ray absorption in the mini-broad absorption line quasar PG 1126-041
Margherita Giustini, Massimo Cappi, George Chartas +7
We present the results of a multi-epoch observational campaign on the mini-broad absorption line quasar (mini-BAL QSO) PG 1126-041 performed with XMM-Newton from 2004 to 2009. Time…
Variable X-ray absorption in the mini-BAL QSO PG 1126-041
Margherita Giustini, Massimo Cappi, George Chartas +7
X-ray studies of active galactic nuclei (AGN) with powerful nuclear winds are important for constraining the physics of the inner accretion/ejection flow around supermassive black…
A deep look at the inner regions of the mini-BAL QSO PG 1126-041 with XMM-Newton
M. Giustini, M. Cappi, G. Chartas +3
A long XMM-Newton observation of the mini-BAL QSO PG 1126-041 allowed us to detect a highly ionized phase of X-ray absorbing gas outflowing at v~15000 km/s. Physical implications a…
Variable X-ray Absorption in mini-BAL QSOs
M. Giustini, M. Cappi, G. Chartas +3
We present the results of X-ray spectral analysis of two mini-BAL QSOs, PG 1126-041 and PG 1351+640, aimed at getting insights into the physics of quasar outflows. We find strong X…
High Velocity Outflows in Narrow Absorption Line Quasars
G. Chartas, J. Charlton, M. Eracleous +6
The current paradigm for the AGN phenomenon is a central engine that consists of an inflow of material accreting in the form of a disk onto a supermassive black hole. Observations…