Odessa Astronomical Publications (Dec 2007)

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

DOI
https://doi.org/10.18524/1810-4215.2007.20.87206
Journal volume & issue
Vol. 20, no. 1
pp. 208 – 211

Abstract

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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.