Analysis of the Q2237+0305 light-curve variability with regularization technique

Details Analysis of the Q2237+0305 light-curve variability with regularization technique Analysis of the Q2237+0305 light-curve variability with regularization technique

Nov 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007mnras.381.1655k&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 381, Issue 4, pp. 1655-1662.

Astronomy and Astrophysics

Astronomy

3

Gravitational Lensing, Quasars: Individual: Q2237+0305

Scientific paper

The microlensing high-amplification events in the light curves of the gravitationally lensed quasar Q2237+0305 observed by the OGLE group and GLITP collaboration are analysed. The significant brightness amplification in the A and C components in 1999 observational season are considered under the assumption of the fold caustic crossing. Under this assumption we applied the model-independent method based on regularization technique for one-dimensional profile restoration of the quasar accretion disc brightness distribution. The recovered brightness distribution of the source seems to obey the standard model for the accretion disc. The estimated effective radius of the quasar emitting region is in agreement with the previous studies.

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