SIMBAD references

2018ApJ...869..106M - Astrophys. J., 869, 106-106 (2018/December-3)

Accretion disk size measurement and time delays in the lensed quasar WFI 2033-4723.

MORGAN C.W., HYER G.E., BONVIN V., MOSQUERA A.M., CORNACHIONE M., COURBIN F., KOCHANEK C.S. and FALCO E.E.

Abstract (from CDS):

We present 13 seasons of R-band photometry of the quadruply lensed quasar WFI 2033-4723 from the 1.3 m SMARTS telescope at CTIO and the 1.2 m Euler Swiss Telescope at La Silla, in which we detect microlensing variability of ∼0.2 mag on a timescale of ∼6 years. Using a Bayesian Monte Carlo technique, we analyze the microlensing signal to obtain a measurement of the size of this system's accretion disk of log(rs/cm)=15.86–0.27+0.25 at λrest = 2481 Å, assuming a 60° inclination angle. We confirm previous measurements of the BC and AB time delays, and we obtain a tentative measurement of the delay between the closely spaced A1 and A2 images of ΔtA1A2=tA1-tA2=-3.9–2.2+3.4 days. We conclude with an update to the Quasar Accretion Disk Size-Black Hole Mass Relation, in which we confirm that the accretion disk size predictions from simple thin disk theory are too small.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - gravitational lensing: micro - gravitational lensing: strong - quasars: individual: WFI 2033-4723

VizieR on-line data: <Available at CDS (J/ApJ/869/106): table2.dat table3.dat>

Simbad objects: 9

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