  We report spectral and variability analysis of two quiescent low mass x-ray
binaries (previously identified with ROSAT HRI as X5 and X7) in the globular
cluster 47 Tuc, from a Chandra ACIS-I observation. X5 demonstrates sharp
eclipses with an 8.666+-0.008 hr period, as well as dips showing an increased
N_H column. Their thermal spectra are well-modelled by unmagnetized hydrogen
atmospheres of hot neutron stars, most likely heated by transient accretion,
with little to no hard power law component.
