SIMULATION OF COLOR VARIATIONS IN GRAVITATIONALLY LENSED QUASAR Q2237+0305 (THE EINSTEIN CROSS)

G. V. Smirnov, V. G. Vakulik, R. E. Schild, V. S. Tsvetkova

Анотація


A mechanism of colorized phenomena in gravitationally lensed quasar Q2237+0305 due to microlensing is analysed in computer simulation. A two-component quasar spatial structure model consisting of a hot central source surrounded by an extended outer structure with a more low-temperature radiation was proposed. The model was shown to provide relationship between variations of the (V - I) color indices and R magnitudes, which is consistent to the observed one presented in our recent publication.

Ключові слова


gravitational lensing; quasars; individual; Q2237+0305.

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Посилання


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DOI: https://doi.org/10.18524/1810-4215.2007.20.87206

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