BVK combined color indices , and the history of star formation of the Cartwheel ring galaxy

In this paper we model and analyse the B − V /V − K radial color gradients observed in the Cartwheel ring galaxy. Along with the color-color diagrams, we use the QBVK combined color indices, which minimise the uncertainties in the observed B − V and V − K colors introduced by dust extinction. To model the optical and near-infrared color properties of the… CONTINUE READING