Bulg. J. Phys. vol.33 no.s3 (2006), pp. 194-199

Investigation of Quasar Structure with Microlensing

L.Č. Popovic
Belgrade Astronomical Observatory, Volgina 7, 11160 Belgrade, Serbia
Abstract. The gravitational lensing may provide an additional method for studying the inner structure of quasars. First, the extra flux magnification (from a few to 100 times) provided by the lensing effect enables us to obtain high signal-to-noise ratio. Second, the magnification of spectra of different images can be chromatic, i.e. the lines and continuum magnification due to microlensing can be wavelength-dependent. Here, we discuss the influence of microlensing on spectra of lensed quasars. Also we discuss a spectral anomaly in lensed QSO PG 1115+080.

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