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We perform a new analysis of the extant ROSAT and XMM-Newton X-ray surveys ofthe southern open cluster Blanco 1, utilizing new BVIc photometric and propermotion data sets. In our study, we match optical counterparts to 47 X-raysources associated with Blanco 1 cluster members, 6 of which were listed inprevious X-ray studies as cluster nonmembers. Our new catalog of opticalcounterparts to X-ray sources clearly traces out the Blanco 1 main sequence ina CMD, extending from early G to mid-M spectral types. Additionally, we derivenew Lx as well as Lx/Lbol ratios for confirmed cluster members. We comparethese X-ray properties to other young open clusters, including the coevalPleiades cluster, to investigate the relationship between age and X-rayactivity. We find that stars in Blanco 1 generally exhibit X-ray propertiessimilar to those of other open clusters, namely increasing Lx/Lbol withreducing mass for earlier-type stars, and a saturation limit of Lx/Lbol at amagnitude of 10^-3 for stars with V-Ic > 1.25. More generally, the X-raydetected stars in Blanco 1 have X-ray emission magnitudes that agree with theoverall trends seen in the other young clusters. In a direct comparison ofBlanco 1 to the Pleiades open cluster, members of both clusters have similarX-ray characteristics; however, there does appear to be some discrepancies inthe distribution of Lx/Lbol as a function of color that may be related toscatter seen in the Pleiades CMD. Moreover, previous comparisons of this naturefor Blanco 1 were not possible due to the reliance on photographic photometry.This is where the power of precise, homogeneous, and standardized CCDphotometry allows for a high fidelity, detailed study of the X-ray propertiesof stars in Blanco 1. [abridged]

A New X-Ray Analysis of the Open Cluster Blanco 1 Using Wide-Field BVIc Photometric and Proper Motion Surveys