Are the broad emission lines of quasars affected by gravitational microlensing?

Details Are the broad emission lines of quasars affected by gravitational microlensing? Are the broad emission lines of quasars affected by gravitational microlensing?

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...237...42s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 237, no. 1, Oct. 1990, p. 42-53.

Astronomy and Astrophysics

Astrophysics

56

Emission Spectra, Gravitational Lenses, Line Spectra, Quasars, Active Galactic Nuclei, Gravitational Effects, Stellar Radiation

Scientific paper

The influence of microlensing on the line profiles of quasars is considered using realistic microlensing models. Microlensing calculations are used to obtain a magnification pattern in the source plane, which is then convolved with the specific intensity obtained from broad emission line (BEL) region models to yield an observable line profile. The results clearly show that the BELs in gravitationally lensed quasars can be affected by microlensing. The magnitude of this effect depends critically on the size of the BEL region, which in turn depends on the black hole mass and the observed line widths, the typical mass of the microlenses, the geometry and kinematics of the BEL region, and the redshifts of the source and lines.

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