Erratum: ``Microlensing of the Lensed Quasar SDSS 0924+0219'' (ApJ, 647, 874 [2006])

Details Erratum: ``Microlensing of the Lensed Quasar SDSS 0924+0219'' (ApJ, 647, 874 [2006]) Erratum: ``Microlensing of the Lensed Quasar SDSS 0924+0219'' (ApJ, 647, 874 [2006])

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apj...670.1518m&link_type=abstract

The Astrophysical Journal, Volume 670, Issue 2, pp. 1518-1520.

Mathematics

Probability

Scientific paper

In the original paper, we made two errors which require correction. First, the image assignments for images A, B, and C used in the lens models to compute the convergence, shear, and stellar mass fractions used for the microlensing models were permuted with respect to the light curves. The correct model parameters are presented here in a corrected Table 2. After correcting this problem, the accretion disk size increases by a factor of ~2, with a median value of rs=6.9×1014 cm and a 1 σ confidence region of 3.0×1014 cm<=rs<=1.4×1015 cm. While our predictions for the future behavior of image D were little affected by the problem, the expectations for A were strongly affected. In the corrected predictions (see corrected Fig. 10 given here), there is little probability for image A to fade by any large factor. Our second error was in equation (4), which should read LνR,emitted=4πFνR,obsD2L/(1+zs)=(5.4+/-4.1)×1029 ergs s-1 Hz-1. (4)The rest-frame Lν calculation error also propagated into our estimate of the black hole mass (MBH) using the Kollmeier et al. (ApJ, 648, 284 [2006]) Mg II 2800 Å emission line width normalizations and our estimate of the bolometric luminosity using the Kaspi et al. (ApJ, 553, 631 [2000]) scaling. The correct values are MBH=(7.3+/-2.4)×107 Msolar and Lbol~=9×λLλ(5100 Å)=(2.7+/-1.3)×1045 ergs s-1. We display these corrected results graphically in the MBH vs. M˙ constraint plot, the corrected Figure 7 given here. This figure also presents the constraint on MBH vs. M˙ from the corrected microlensing accretion disk size. All results reported in this erratum assume h=0.7.

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