30-year VRI light curves of the Einstein Cross show the quasar optical source half-light radius scales with wavelength as a power law with index 0.94, giving a g-band size of 9.6 light-days for 0.3 solar-mass microlenses.
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Joining forces: 30 years optical monitoring of the Einstein Cross
30-year VRI light curves of the Einstein Cross show the quasar optical source half-light radius scales with wavelength as a power law with index 0.94, giving a g-band size of 9.6 light-days for 0.3 solar-mass microlenses.