CORONAL EMISSION FROM DG HALO STARS

We propose to observe 3 dG halo stars with chromospheric emission, with the aimto determine if these metal poor stars can have coronae with properties similarto those of population I stars. By assuming the relationship found forpopulation I stars between MgII and coronal emission we have predicted the levelof Xray luminosity of our targets. Their detection at the predicted level, aswell their non detection, will allow us to determine if old metal poor stars canhost a solarlike dynamo or if MgII emission is due to a basal flux, originatedby acustic waves without any r^ant magnetic component. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]