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Title:
Microlensed light curves for thin accretion disks around Schwarzschild and Kerr black holes
Authors:
Jaroszynski, M.; Wambsganss, J.; Paczynski, B.
Affiliation:
AA(Warsaw University Observatory, Poland; Princeton University Observatory, NJ), AB(Princeton University Observatory, NJ; Max-Planck-Institut für Physik und Astrophysik, Garching bei München, Germany), AC(Princeton University Observatory, NJ)
Publication:
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 396, no. 2, Sept. 10, 1992, p. L65-L68. Research supported by Ministry of Education of Poland. (ApJL Homepage)
Publication Date:
09/1992
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Accretion Disks, Black Holes (Astronomy), Gravitational Lenses, Light Curve, Schwarzschild Metric, Astronomical Models, Luminosity, Quasars, Relativistic Effects
DOI:
10.1086/186518
Bibliographic Code:
1992ApJ...396L..65J

Abstract

Surface brightness maps for thin accretion disks around Schwarzschild and Kerr black holes are presented. These disks are a few times smaller than those used by Rauch and Blandford (1991), and some of the present models are slightly less luminous than theirs. Example of microlensed light curves are calculated by convolving these accretion disk maps with the magnification patterns obtained from microlensing calculations. The light curves exhibit eventlike variations with amplitudes and time scales comparable to those observed in QSO 2237 + 0305. It is concluded that thin thermal accretion disk models are not in contradiction with the observed microlens-induced variations of QSO 2237 + 0305.

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