Potential Condensed Fuel for the Milky Way

Potential condensed clouds of gas in the Galactic halo are examined in thecontext of the recent models of cooling, fragmenting clouds building up thebaryonic mass of the Galaxy. 582 high-velocity clouds (HVCs) are defined as thepotential infalling, condensed clouds and the sample's spatial and velocitydistribution are presented. With the majority of the hydrogen in the cloudsionized (~85%), the clouds at a distribution of distances within 150 kpc, andtheir individual total masses below 10^7 Msun, the total mass in potentiallycondensed clouds is 1.1 - 1.4 x 10^9 Msun. If the tighter distance constraintof < 60 kpc is adopted this mass range drops to 4.5 - 6.1 x 10^8 Msun. Theimplications on the condensing cloud models, as well as feedback and additionalaccretion methods, are discussed.Comment: 14 pages, ApJ accepte