Expected color variations of the gravitationally microlensed QSO 2237 + 0305

Details Expected color variations of the gravitationally microlensed QSO 2237 + 0305 Expected color variations of the gravitationally microlensed QSO 2237 + 0305

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....102..864w&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 102, Sept. 1991, p. 864-868.

Physics

Optics

106

Gravitational Lenses, Light Curve, Quasars, Astronomical Models, Geometrical Optics

Scientific paper

Typical light curves and the corresponding color curves are shown for the present model of QSO 2237 + 0305 A, the image that has been reported to vary. Probabilities are presented for color changes of certain amplitudes as functions of the observed magnitude changes for different intervals between the two observational epochs, different source sizes, and different source size ratios. It may be possible to find the ratio of the continuum source sizes in the two color bands, once a color change correlated with a continuum change is found.

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