Gravitational micro-lensing as a clue to quasar structure

Details Gravitational micro-lensing as a clue to quasar structure Gravitational micro-lensing as a clue to quasar structure

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...194...54g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 194, no. 1-2, April 1988, p. 54-64.

Astronomy and Astrophysics

Astrophysics

54

Brightness Distribution, Gravitational Lenses, Light Curve, Quasars, Astrometry, Stellar Parallax

Scientific paper

Micro-lensing is discussed with special emphasis on the possibilities of determining the one-dimensional intrinsic luminosity profile and the effective transverse velocity of a lensed quasar (compact source). The luminosity profile can be determined from the light curve during a high amplification event (HAE), which occurs when the source crosses a critical curve (anti-caustic). The transverse velocity and the absolute size of the source can be determined from HAE light-curves by at least two observers some distance apart (⪆ 1 AU).

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