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arXiv · 0801.2698

Microlensing probes the AGN structure of the lensed quasar J1131-1231

D. Sluse·J. -F. Claeskens·D. Hutsemékers·J. Surdej
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Abstract

We present the analysis of single epoch long slit spectra of the three brightest images of the gravitationally lensed system J1131-1231. These spectra provide one of the clearest observational evidence for differential micro-lensing of broad emission lines (BELs) in a gravitationally lensed quasar. The micro-lensing effect enables us: (1) to confirm that the width of the emission lines is anti-correlated to the size of the emitting region; (2) to show that the bulk of FeII is emitted in the outer parts of the Broad Line Region (BLR) while another fraction of FeII is produced in a compact region; (3) to derive interesting informations on the origin of the narrow intrinsic MgII absorption doublet observed in that system.

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D. Sluse, J. -F. Claeskens, D. Hutsemékers, J. Surdej. 2008-01-17. Microlensing probes the AGN structure of the lensed quasar J1131-1231. https://arxiv.org/abs/0801.2698

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