Recent work on nearby AGNs has shown that X-ray variability is correlated with the mass and accretion rate onto the central SMBH. Here we present the application of the variability-luminosity relation to high redshift AGNs in the CDFS, making use of XMM-Newton observations. We use Monte Carlo simulations in order to properly account for bias and uncertainties introduced by the sparse sampling and the very low statistics. Our preliminary results indicate that BH masses span over the range 105÷109Mâwhile accretion rates range from 10-3up to >1á¹Edd. © 2010 American Institute of Physics.
Probing BH mass and accretion through X-ray variabiliy in the CDFS
Allevato, V.;Pinto, C.;Comastri, A.;
2010
Abstract
Recent work on nearby AGNs has shown that X-ray variability is correlated with the mass and accretion rate onto the central SMBH. Here we present the application of the variability-luminosity relation to high redshift AGNs in the CDFS, making use of XMM-Newton observations. We use Monte Carlo simulations in order to properly account for bias and uncertainties introduced by the sparse sampling and the very low statistics. Our preliminary results indicate that BH masses span over the range 105÷109Mâwhile accretion rates range from 10-3up to >1á¹Edd. © 2010 American Institute of Physics.File in questo prodotto:
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