Flux and color variations of the quadruply imaged quasar HE 0435-1223 (D. Ricci et al.)
- Details
- Published on 23 February 2011
Vol. 528
In section 4. Extragalactic astronomy
Flux and color variations of the quadruply imaged quasar HE 0435-1223
The variations of the lensed quadruplet show that one component may also be microlensed; color variations are consistent with the variations in the QSO and not in the lenses. The study presents a careful analysis using different methods (e.g. differencing, psf fitting) for studying the multiband variability.